Plan mode

Plan mode turns the Top pane into the floor plan of one level so you can draw walls and place doors and windows the Revit way. The plan pane always uses Revit controls and two-letter shortcuts, whatever input style you chose.

Turning it on

• Click "Floor plans" in the toolbar. The Top pane of the four-view layout becomes the plan of the chosen level. Levels are listed in the left column and the properties header reads "Floor Plan: 1F".
• The viewport layout dropdown gains "Plan only". In the "3D only" layout the plan is not visible; switch to 4 views or Plan only.
• On first use the level closest to ±0 is shown.
• The plan mode state and current level are remembered per design.

Levels

• The "Floor Plans" list in the left column works like Revit's Project Browser. Click a level to open its plan.
• Right-click a level to rename it, change its elevation, add a level above or delete it.
• Delete level: you are asked to confirm first (walls based on the level are deleted with it). Ticking "Move the levels above down by this storey height" moves every level above (reference levels included) down by the height of the deleted storey (the distance to the next level up); levels whose elevation is driven by a global parameter get the parameter changed instead (a formula ending in "× k" gets k − 1, other formulas and constants are reduced by the storey height; if the parameter also drives something else, the association is removed, the elevation is set directly and you are told). It is unticked by default (as in Revit, deleting a level does not move the other levels). One Ctrl+Z undoes it.
• LL adds a level with one click in an elevation pane, or opens a dialog that arrays several levels upward at once; names count up automatically; between two levels it is a mezzanine (M2F, MB1F). See 3D modeling › Create by face, levels and openings.
• PageUp and PageDown move up and down a level (with the cursor over the plan pane or in Plan only).
• Levels are data of the "Levels" node. If the count and elevations are driven by an upstream slider, names and individual elevations edited here are kept as overrides.
• With nothing selected, the properties panel shows the current plan view's settings: detail level, scale and view range (VR).

Multiple buildings

• Each Levels node is one building, with its own level table.
• When there are two or more buildings, the Floor Plans browser shows a Building selector and a “+ Add building” button.
• Newly drawn elements belong to the selected building; plans only draw the selected building’s elements.
• IFC export writes one IfcBuilding per building.
• Every storey of every building has its own floor plan view: the Project Browser lists views such as “Building B 1F Floor Plan”, which can go on sheets; double-click switches to that building and level. Views of the main building are unchanged.
• Visibility/Graphics, view templates, color schemes and legends are stored per building and level; switching buildings does not affect the other building.
• 3DM export uses layers “Building::Level::Category”; 3D-to-2D per-view layer prefixes use the level key, so same-named levels in two buildings do not clash.
• The Structure panel, auto layout and placing columns and beams on grids work on the current building only.
• Area plans, room uses, sales areas, cost estimates, 4D, egress and accessibility checks, COBie and gbXML show the building name with each level.
• Regulation review: BCR and FAR are judged on the whole-site totals; the report also lists each building’s gross floor area, FAR floor area and height, and the height limit is checked per building (the Regulation review summary node outputs each building’s height and pass flag).
• In 3D, after setting the construction plane to a level of another building, walls and other elements you draw are bound to that building.
• Old designs with a single Levels node are unchanged; a second Levels node in an old file becomes building B.

Selection and view

• Click to select. Left→right is a window (fully contained), right→left is a crossing (anything touched).
• Ctrl adds, Shift removes. Tab cycles to the next candidate or selects the whole wall chain. Esc clears.
• Middle-drag pans, the wheel zooms. ZF zoom to fit, ZA zoom all views to fit, ZR zoom in region.
• Esc once ends the current step; twice returns to Modify (select).
• Status bar toggle "Drag Elements on Selection": on = press on an element and drag to move it; off = only selected elements can be dragged.
• After the first letter the status bar shows "W_" with the candidates. A wrong second letter clears it.

Walls

1. Press WA or click "Wall" in the toolbar.
2. In the Options Bar choose the draw shape (line, rectangle, polygon, circle, arc, Pick Lines), height or top level, location line (centerline, faces and so on), Chain, offset and radius. The type selector picks the wall type.
3. Click the start, then the end. Or type a length + Enter in millimetres: 6000 is 6 m.
4. Draw clockwise to keep the exterior outside. After placing, Space flips the sides.
5. Check Chain to keep drawing. Esc ends the chain; press it again to return to Modify.
6. After placing, click a temporary dimension's number to change the length.

Editing walls: TR trim/extend to corner (click two walls on the side to keep), SL split (click a wall to cut it, openings go with their segment), AL align (click the reference line, then the line to align), OF offset, AR array (linear or radial), PN pin.

Wall types: layers, wrapping, sweeps, stacked walls and materials

Select a wall and expand "Type Parameters (Edit Type)" in Properties. You edit the type: every wall of that type changes; editing a built-in type stores an override of the same name in the project.

• Structure (exterior → interior): function, material, thickness and core per layer; move up, move down, delete, or add a layer on the exterior.
• Wrapping: "Wrapping at Ends" and "Wrapping at Inserts" are None, Exterior, Interior or Both. The non-core layers on that side wrap around unjoined wall ends, the jambs of doors and windows, and the sill and head (Both = each side wraps to the core centreline). Wrapped walls show their layers in 3D (material colours) and the material takeoff uses the real volume of each layer.
• Layers in plan: set the plan view's detail level to Medium or Fine to draw the layer lines and the materials' cut patterns of compound walls; Coarse draws the outline only.
• Sweeps and reveals: "+ Sweep" adds a profile that projects from the face (for example a skirting), "+ Reveal" adds a groove; set exterior or interior, distance from the base (or tick "From top"), profile height, depth and material. Sweeps are cut by doors and windows; schedules have "Sweeps" and "Sweep Length", the material takeoff has a "Wall Sweeps" category, and IFC writes IfcCovering (reveals as IfcOpeningElement .RECESS.).
• Stacked walls: "New Stacked Wall Type…" asks for the bottom type, its height and the top type (variable height) and switches the wall to the new type. In the type parameters you can then change each sub-wall's type, height (0 = variable) and offset toward the exterior. IFC writes one IfcWall with each part extruded and a property set lsm_StackedWall listing the parts.
• Heat transfer coefficient U: from the layer thicknesses and the materials' thermal conductivity λ (with conventional surface resistances, different for exterior and interior walls). Materials without λ are listed. Roof properties show U too; schedules can add "Heat Transfer Coefficient U"; IFC writes ThermalTransmittance in Pset_WallCommon / Pset_RoofCommon / Pset_SlabCommon.
• Material Browser: command materials (or mat), "Material Browser…" in the type parameters, or "Materials" under Families & Manage in the Outliner. Each material has identity data (description, mark, manufacturer, model, cost), graphics (shading colour, transparency, cut pattern, surface pattern), appearance (3D material, roughness), physical (density) and thermal (λ, specific heat) properties. New, duplicate, rename (every type's layers follow), delete; "Reset to default" after editing a built-in material. Built-in values are generic defaults written for this app; change them to match the actual products. IFC export writes Pset_MaterialCommon, Pset_MaterialThermal and the material colours.

Wrapping, sweeps and stacking apply to straight walls; arc walls and attached or profile-edited walls show as plain walls with a warning.

Curtain walls

• Drawing a curtain wall: use the wall tool (WA) and pick a type from the "Curtain Wall" group of the Type Selector; drawing works like any wall. Curtain walls are always located by their centreline, so there are no Location Line or join options. Three types are built in: "Curtain Wall" (no grid or mullions), "Exterior Glazing" (vertical and horizontal grids at a fixed distance of 1.5 m, 50 × 150 mm mullions, 150 × 150 mm corner mullions) and "Storefront" (vertical grid at a maximum spacing of 1.5 m, horizontal grid at a fixed distance of 2.4 m, mullions as Exterior Glazing, embeds automatically). Panels default to 25 mm glazed panels.
• Automatic embedding: a "Storefront" wall drawn inside a basic wall cuts a hole in that host wall. Both walls must be straight and parallel, the curtain wall's centreline must lie within the host wall's thickness, and they must overlap along the wall and in height. Arc walls never embed.
• Duplicating a type: "Duplicate type… (change grid spacing)" in the Type Selector asks for a name and the vertical and horizontal grid spacing (mm, at least 100; 0 = no grid lines in that direction). The name must not match an existing type. A duplicated type keeps the original layout: Maximum Spacing stays Maximum Spacing and Fixed Number stays Fixed Number; a direction that had no grid gets Fixed Distance when you give it a spacing.
• Curtain Grid (command curtaingrid, alias cg; there is no two-letter shortcut, because CG is Cancel in Revit's official default table): click a curtain wall in a 3D or elevation pane: near the top or bottom edge places a vertical grid line, near the ends a horizontal one; it snaps to the middle of a panel. Positions round to 1 cm. The tool repeats; Esc or Space ends it.
• Mullion MU (command mullion): click a grid line of a curtain wall to add a mullion; click a grid line that already has one to remove it; Shift+click = every grid line of that curtain wall. If there is no grid line, add one with curtaingrid first. Where two curtain walls meet end to end, a corner mullion is added automatically (if the type has a corner mullion; the "Curtain Wall" type has none).
• Properties panel: "Curtain wall (type parameters, read-only)" shows the vertical grid, horizontal grid and Automatically Embed. When a grid uses Fixed Number, this wall can change the number (0–200). In the small "Panels" elevation, click panels (Shift for more) or press "Select all", choose a panel type in the drop-down and press "Swap panel": System Panel: Glazed, System Panel: Solid, Empty Panel. "Manual grid lines" lists the lines added with curtaingrid; each can get a mullion or be deleted. Grid lines that come from the type cannot be deleted.
• A curtain wall cannot take an OW wall opening; swap the panel to an Empty Panel instead. A pinned curtain wall cannot change its grid or mullions (press UP first). The three curtain pick tools can also be started from the command line: curtaingrid, mullion and curtainsystembyface (aliases cg, mu, fc); they run the same tool as the shortcuts. Grid spacing is at least 100 mm (smaller values in a file are raised to 100 mm on reading); one direction has at most 500 grid lines, and one curtain wall or curtain system has at most 20,000 cells; beyond that an error is shown, so increase the grid spacing of the type. Every action can be undone with Ctrl+Z. For Curtain System by Face (FC) see 3D modeling › Create by face.

Doors and windows

• DR door, WN window. The preview appears only over a wall; elsewhere you see a "not allowed" cursor.
• Door: the side of the wall the cursor is on is the swing side. Space changes the hinge side. The temporary dimensions on both sides measure to the intersecting wall centerline or the neighbouring opening.
• Window: the side of the wall the cursor is on is the exterior (sill line). Set the sill height in the Options Bar or properties first.
• Click to place; keep placing. Esc returns to Modify.
• Openings are hosted by walls. They stay hosted after copying (CO) or splitting the wall. Arraying only openings runs along the host wall.
• Door and window type parameters (Edit Type): select a door or window; under "Type Parameters (Edit Type)" in Properties you can change the operation (doors: single, double, unequal double, 2-panel sliding, 4-panel sliding, folding, revolving; windows: fixed, casement, sliding, awning), width, height, default sill height, frame width, frame depth (0 = wall thickness), main leaf ratio, folding leaf count, door panel (solid, glazed or louvre, with a portion), threshold, window pane rows and columns, mullion width, sill projection, fire rating and type mark. This edits the type, so every door or window of that type changes; editing a built-in type saves a project type with the same name. Edit family types in the Family Editor. Built-in types now also include an unequal double door, glazed door, fire door (1 hour, type mark FD), louvre door, 4-panel sliding door, folding door, revolving door, awning window, multi-pane fixed window and double casement window.
• Plan symbols: single, double and unequal double doors show leaves and swing arcs; sliding doors show offset panels and sliding arrows; folding doors a half-open zigzag; revolving doors the drum arcs and four wings; a threshold adds two lines at the wall faces. At Medium or Fine detail, windows also show casement swings, sliding arrows and mullions; the sill line projects by the type value. Door and window schedules can add Fire Rating, Type Mark, Operation, Frame Width, Frame Depth, Panel, Threshold, Panes and Sill Projection fields, and tags can show the type mark. IFC export writes the operation type, the window partitioning type, door and window panel properties, and the fire rating.
• Arched openings, shafts and vertical openings: after placing a wall opening with OW, set Shape to Arched in Properties and enter the arch rise (rise = half the width is a semicircle), or to Round (fits the width × height; unequal sizes give an ellipse). Command line shaftopening: select a closed curve, or type shaftopening x,y width depth, to create a shaft from a base level to a top level; floors, ceilings and roofs in that range are cut, and plans show the outline with diagonals. Select a floor, ceiling or roof first and type verticalopening x,y width depth for a vertical opening that cuts only that element. A shaft whose base sits exactly on a floor top does not cut that floor (as in Revit).

Temporary dimensions

• While drawing a wall, length and angle follow the cursor.
• After placing, select a wall or opening to see editable temporary dimensions. Click the number, type a new value, press Enter.
• Length fields accept units: 4200mm, 4.2m, 10'.

Modify tools

These commands start with two-letter shortcuts, and their options are in the options bar below the toolbar. Pinned elements (PN) are blocked by every modify command.

• Select: when several elements overlap under the cursor, Tab cycles to the next candidate; Tab over a wall selects the whole wall chain. When the selection holds more than one category, a "Filter" button appears in the options bar so you can check the categories to keep (check all or none).
• Move MV, Copy CO: click a base point, then a target point, or type a distance. "Constrain" limits movement to horizontal or vertical. "Disjoin" moves a wall without its joined walls (unchecked, the joined walls stretch to stay joined). Copy adds "Multiple" for repeated copies.
• Mirror MM (pick axis), DM (draw axis): "Copy" is checked by default.
• Split SL: click a wall to cut it in two; doors and windows go with their segment. Check "Delete Inner Segment" and click two points to remove the part between.
• Offset OF: "Numerical" types a distance (default); "Graphical" picks it with two clicks. "Copy" is checked by default. Hover a wall for a preview (on the cursor side) and press Tab for the whole chain.
• Array AR: "Linear" or "Radial". "Number" includes the original. "Move To" is "2nd" (you enter the spacing) or "Last" (you enter the total length or angle). Check "Group and Associate" to change the count afterwards. Linear can be constrained to horizontal or vertical. Radial needs a rotation center first.
• Align AL: click the reference line (wall face, wall centerline or opening edge), then the line to align, and the element moves there. An open padlock appears on the line; click it to lock the alignment. Once locked, the aligned element follows when the reference moves, and the reference follows when only the aligned element moves; deleting the reference deletes the constraint. Selecting the aligned element later shows 🔒; click it to unlock. Only straight walls and doors/windows are supported. If the other element is pinned or cannot move, the element is moved back and an error is shown. If a new padlock would contradict existing locks so that they cannot all be satisfied (for example B locked to A while A is locked to another line of B), it is not locked and the reason is shown; constraints that already contradict each other are not enforced when you edit, and "Locked alignment constraints contradict each other…" is shown: click a padlock to unlock one of them. When the reference is rotated so that its line is no longer parallel, that constraint is removed with a message. Damaged constraint data in a file is dropped on reading without affecting the other constraints. "Multiple Alignment" aligns several elements to one reference. "Prefer" chooses wall faces or wall centers. Esc once restarts, twice leaves.
• Pin PN, Unpin UP: a pinned element shows a pin icon. It cannot be moved, deleted, stretched by a neighboring wall, or changed by other modify commands. Copies do not carry the pin.

Floors

Floors are created in sketch mode, like a Revit floor: draw the boundary, then press ✓ to finish.

1. Click "Floor" in the toolbar. If there are no levels yet, one is created and plan mode opens first, then sketch mode starts.
2. The default is "Pick Walls": click a wall to add it to the boundary; hover a wall and press Tab to pick the whole wall chain. "Pick Lines" adds a boundary line along the wall face on the cursor side. You can also draw it yourself: line, rectangle, inscribed polygon, start–end–radius arc, with "Chain" available.
3. "Offset" in the options bar is the distance of the boundary from the wall face (positive goes outward). "Extend into wall (to core)" measures to the wall core face instead. Click the flip arrows to move the boundary to the other side of the wall.
4. For a sloped floor, add a "Slope Arrow": click the head (high end), click the tail (low end), then set the height offset at the head. To set the structural span, add a "Span Direction".
5. To edit inside the sketch, use "Modify" to pick a sketch line, press Delete to remove it, and Ctrl+Z to undo. Esc only ends the current stroke and does not leave sketch mode.
6. Press ✓ "Finish Edit Mode" to create the floor, or ✗ "Cancel Edit Mode" to discard it. If the sketch has errors an error card appears and you must fix them before finishing; warnings can be ignored.

• You cannot switch tools while sketching; only view commands (ZF, ZA, TL, VG, VV) are allowed. Press ✓ or ✗ first to change tools.
• To change the boundary later, select the floor and click "Edit Boundary" in the properties panel or options bar. A pinned floor must be unpinned with UP first. If the boundary is driven by a Grasshopper curve, edit the upstream curve in the node graph.
• The floor type is in the type selector at the right of the options bar (it shows the total thickness; roof types include an insulation layer). The properties panel shows the level, height offset from level, area, perimeter, volume and layer structure.

Rooms and schedule

• Place a room: press RM or the toolbar "Room" button. Move the cursor into a space enclosed by walls and click when its boundary lights up. If the cursor is not inside an enclosed area, placing it gives the warning "not in a properly enclosed region".
• Options bar: "Upper Limit" (same level or another level), "Limit Offset", "Tag on Placement".
• Room separation line: the toolbar "Separator" button. Where there is no wall, use it to divide one space into two rooms. Draw a line or a rectangle; check "Chain" to keep drawing.
• Room tag: once tagged, the room shows its name and number. Double-click the tag to rename the room or change its number (up to 200 characters each).
• Properties panel: name, number, level, upper limit, base offset, and the read-only area, perimeter and volume. Volume has to be computed first: in the "Annotate…" dropdown, "Area and Volume Computations…" lets you choose "Areas only (faster)" or "Areas and Volumes". Fields not computed show "Not Computed".
• Room schedule: "Annotate…" dropdown › "Room Schedule…". It lists name, number, level, area, perimeter and volume. Rooms placed twice are marked "Redundant Room" and rooms without a closed boundary "Not Enclosed". Press "Export CSV" to save room-schedule.csv.

Schedules/Quantities

• Opening: "Schedules/Quantities" below the properties panel in the left column has one button per category: Walls, Doors, Windows, Floors, Roofs, Rooms, Curtain Panels. The "Schedule" window that opens can be dragged, and its header switches category.
• Fields: on the "Fields" tab tick the fields to show and use ↑↓ to reorder them. Walls, for example, have Family, Type, Mark, Base Constraint, Base Offset, Top Constraint, Unconnected Height, Length, Width, Area, Volume, Function, Room Bounding, Comments and Count. The Volume of a curtain wall is blank (as in Revit). The Width and Height of a curtain panel are the panel's bounding size (also for curtain system panels); empty panels are listed and counted with their area.
• Filter: up to 8 conditions (equals, does not equal, is greater than, is greater than or equal to, is less than, is less than or equal to, contains, does not contain). Numeric fields compare in metric units (m, m², m³).
• Sorting/Grouping: up to 4 sort keys, each ascending or descending; "Header/Footer" adds group headers and subtotals. With "Itemize every instance" off, rows with the same sort values merge, numbers are summed, and fields whose values differ between the merged elements are left blank (as in Revit) and cannot be edited there. "Grand totals" shows the total count. Values in group headers and subtotals are shown in the current units.
• Editing in the table: fields marked ✎ can be edited in place and are written back to the element's parameters, for example Type, Mark, Base Constraint and Offset, Unconnected Height, Sill Height, Structural, Comments, and a room's Name and Number. Enter or leaving the cell commits, Esc cancels, and each edit is one undo step. Pinned elements and elements held by a locked alignment cannot change fields such as type, constraints and heights; those cells are marked 📌 or 🔒 and the tooltip says how to release them: pinned = press UP first; locked alignment = select the element and click the padlock 🔒 (UP does not unlock it); curve-driven wall = edit the connected curve. calculated values such as length and area cannot be edited. Clicking a row selects that element in the model.
• CSV: "CSV" in the header downloads a CSV file (UTF-8), with the group headers and subtotals as shown; the final total row is written only when "Grand totals" is ticked. Cells beginning with =, +, - or @ get a leading ' so spreadsheets do not run them as formulas; negative numbers do not.
• The schedule's fields, filters and sorting are saved in the design and are saved and undone with it. Rooms also have "Room Schedule…" in the "Annotate…" drop-down; see Rooms and schedule.

Annotations: dimensions, spot elevations, tags, text

These tools are in the toolbar "Annotate…" dropdown, and most have two-letter shortcuts too.

• Aligned Dimension DI: click the references in turn (walls, openings), then click an empty spot to place the dimension. Hover an element and press Tab to change the reference (centerline, face, core). "Prefer" in the options bar sets the default reference; "Pick" takes a whole wall, "Individual References" takes them one by one. Only parallel references can be measured. The dimension type is CN-LINEAR, which uses the same values as CN-METRIC in 2D drafting.
• Measure to floor, shaft and room-separation edges: when there is no wall or opening under the cursor, click near a floor boundary, a shaft outline or a room separation line (within 5 cm) and the reference is that edge. For example, measure from the edge of a cantilevered floor to the exterior wall face. If the floor boundary changes, the dimension is recalculated. If the edge disappears or is no longer parallel, the dimension is marked invalid and stays where it was; it does not jump to another edge. An edge cannot be moved with the dimension number or EQ; edit the element's own outline instead. Only boundaries made of straight lines have edges (a loop with arcs or wall lines has none).
• Editing a dimension value: click the number on the dimension and type a new distance (for example 2500 or 2.5m); the walls and openings move with it. A pinned element, or a wall joined to a pinned wall, cannot be driven and the reason is shown. Click the blue dot on a witness line to change its reference, or drag it onto another wall or opening to change the referenced element; drag the dimension line or text to move them. Dimensions follow their walls, and become invalid when a referenced element is gone.
• Spot Elevation EL: click where to mark the elevation (a floor, a wall or any point). Options: "Leader" and "Origin" (relative to level, Project Base Point, Survey Point). "Spot Coordinate" marks coordinates the same way.
• Spot Slope (command spotslope): click a point on a roof, sloped floor, ramp, stair or other sloped surface; an arrow pointing downhill is drawn with the slope at that point. The Options Bar sets the format (percent, ratio 1:n, degrees) and the decimal places. The slope comes from the element's actual top surface, follows the host when its slope changes, and is deleted with the host. A spot elevation placed on a sloped floor or roof also uses the top-surface height at that point.
• Material Tag (command materialtag): click a point on a wall, floor, roof, ceiling or component to label the material there. Walls use the layer under the point (type layers run exterior to interior; reversed for a flipped wall), floors and roofs use the top layer and ceilings the bottom layer; Properties can pick a specific layer. The Options Bar shows "Material Name", "Material Mark", "Mark + Name" or "Material Description"; the mark and description come from the material table and show "?" when empty. Drag the blue grip to move the text.
• Multi-Category Tag (command multitag): one tag for elements of any category (walls, doors/windows, floors, roofs, ceilings, stairs, ramps, columns/beams, components) showing a shared parameter: "Mark", "Type Name" or "Comments" (pick in the Options Bar); empty shows "?". The tag is deleted with its host.
• Tag by Category TG: move onto a door, window, room or wall and click to add a tag; options are "Horizontal" or "Vertical" and "Leader". Check "Tag on Placement" when placing doors and windows to show their marks (D1, W1…).
• Tag All…: tags every untagged element on this plan at once; you can pick categories, leader and orientation.
• Text TX: click the text position (for a leader, click the leader start and then the text position), then type the text. The text size is in paper mm.

Stairs, railings and ramps

Revit has no default two-letter shortcuts for Stair, Railing, Ramp, Elevation, Section or Interference Check (ST, for example, is Snap Tangents). LT, LG, PD, EV, SV and IF below are Synhedra's own, checked against Revit's official shortcut list so they do not clash. The toolbar drop-down has the same tools.

• Stair LT: click the center of the first riser, then the direction of the first run (Space flips the turn). Straight, L-shaped or U-shaped (with landing), cast-in-place RC or steel. The base and top levels set the total height; 0 risers = rounded automatically from the type's maximum riser height. Railings on both sides are placed with it, and the whole stair is one undo step. Not available on the top level (there is no level above).
• Plan representation: treads below the cut plane are solid and above it dashed, with the cut line and a walk line with an arrow ("UP" at the start); the level above shows the whole stair marked "DN".
• Preliminary checks: maximum riser height, minimum tread depth, minimum width, maximum rise per run (a landing is suggested above it), landing depth not less than the width, plus 2R + T for reference. The thresholds are common Taiwanese defaults you can change; results are warnings only, so check the regulations that actually apply.
• Railing LG: click the path point by point and press Esc to finish, or click a stair to add its missing side.
• Ramp PD: click the start and end points.
• Esc clears the stroke in progress; press it again to return to Modify.

Elevations, sections and interference check

• Elevation EV: click in a plan pane to place an elevation marker; it faces the model. Section SV: click the start and end of the section line; it looks to the left of the line. In Properties you can flip it and set Far Clip Offset (0 = no clip) and Crop View.
• View list: lists elevations and sections. Open View shows an orthographic line drawing in a window: wheel zooms, drag pans, clicking a line selects its element (synced with 3D and plan). A section can be shown in 3D, cutting the 3D panes with the same line. Pinned markers cannot be deleted; unpin them first with UP.
• Interference Check IF: choose the categories of the first and second set (the first set can be limited to the current selection) and press Check. It lists overlapping element pairs and the overlap volume (m³), and can export CSV. Touching faces do not count, nor do doors and windows with their host walls or railings with their host stairs.
• Stairs, railings and ramps are included in IFC export (see IFC export).

Families & Manage

The "Families & Manage" block in the Outliner on the left: the family library, project families, and the entries of the Manage tab. Read-only designs can only be viewed.

• Family Editor: "New family…" or "Edit Family". Set parameters (length, angle, yes/no, material, text, number; type or instance; formulas allowed), reference planes, forms (extrusion, blend, sweep; solid or void; work plane: plan, front or side elevation) and the family types table; Flex switches types or values so you can see the geometry follow. You edit a draft; "Save to Library" or "Load into Project" writes it into the design (one undo step each).
• Place a Component CM: click to place furniture or generic models, one after another until Esc or Space; the placement rotation is set in the families block. Door and window families: set them as the type of the Door or Window tool, then click a wall.
• Design Options: each option set has a primary option and secondary options, and elements can belong to an option. Views show the primary options by default; schedules, areas and IFC export count the main model plus primary options. Accept Primary merges the primary option into the main model and deletes the other options with their elements.
• Phases: Existing and New Construction by default. Each element has a Phase Created and a Phase Demolished (Phasing in Properties). Views and schedules have a phase and a phase filter; existing = gray, demolished = dashed.
• Visibility/Graphics VG, VV: per-view category overrides (visible, color, linetype, lineweight, transparency, halftone), tag (layer) visibility, locks and color, filters, phase and design options. Plan views use VG; 3D, sections and elevations share one setting, opened from "Families & Manage"; when a scene is active, VG edits that scene's own settings (anything unset follows 3D). A tag with no setting follows the 3D global default (shown as "(from 3D)"). OK writes the changes (one undo step). The categories gain "Grids" (structural grids): only the category's visibility and overrides apply (tag, phase, design option and filters ignore grids); 2D "Import from 3D" also follows this setting to decide whether to add grids, and the view template applied to a view becomes layer overrides of the 2D layout viewport (see office standards in the CAD help).
• View Templates control scale, detail level, categories, filters and phase filter; in a view that uses a template, those items come from the template. Filters pick elements by parameter rules and override their display; higher filters in the list win, and filters win over phase overrides and categories. A rule's parameter can also be "Tag (layer)" or "Design option" (the option name; not in any option = blank).
• Material Takeoff: walls, floors and roofs are counted layer by layer from their structure (wall area minus door and window openings); family components by the material of their forms. Grouped by material with subtotals and a grand total; CSV export. Scope as in schedules: main model plus primary options, with the phase filter applied.

Two-letter shortcuts

Type two letters in a row; no Enter needed. In the Revit input style the whole 3D page uses them; in other styles they apply while the cursor is over the plan pane. The table below is generated from the source code.

Revit map