Keyboard reference

Cmd is ⌘ on macOS and Control on Windows and Linux. In a key combination such as Ctrl G, Ctrl is Control on macOS and Alt on Windows and Linux. Held while you click, drag or fly, Ctrl is Control everywhere.

A tool other than Select takes the plain keys while it runs, so a letter goes to the tool rather than to the menu below. Press Esc to leave the tool first. Cmd, Ctrl and Alt combinations, F-keys, Tab, =, -, and the view toggles marked any tool work in every tool.

Keys do nothing while you are typing in a field.

File

Command	Keys
Open Map…	`Cmd` `O`
Save Map	`Cmd` `S`
Save Map As…	`Cmd` `Shift` `S`
Save Modified Prefab Sets
Migrate 1.x Resources…
Close Editor

Edit

Command	Keys	Right-click on
Undo	`Cmd` `Z`
Redo	`Cmd` `Shift` `Z`
Duplicate	`Cmd` `D`	any selection
Duplicate Prefab Instance	`Cmd` `Shift` `D`	prefab instance
Delete	`Backspace` or `Delete`	any selection
Group	`Cmd` `G`	any selection
Ungroup	`Cmd` `Shift` `G`	any selection
Bring to Front	`Cmd` `Page Up`	structural brush
Send to Back	`Cmd` `Page Down`	structural brush
Reset Transforms	`Cmd` `R`
Reset Instance Transform	`Cmd` `Shift` `R`	prefab instance
Merge Brushes	`,`	brush
Merge Brushes (keep originals)	`Cmd` `,`	brush
Lock Texture to Geometry

Selection

Command	Keys	Right-click on
Pick Faces	`Q`; hold for faces only while it is down
Invert Selection	`Cmd` `I`	any selection
Focus Camera on Selection	`Cmd` `A`	any selection
Find Entity…	`Ctrl` `F`
Grow Face Selection		face
Select Face Loop		face
Flood Fill Faces	`Cmd` `Shift` `F`	face
Bridge Faces	`Cmd` `F`	face
Pick Up Face UVs	`Cmd` `Shift` `C`	face
Paint UVs onto Selected Faces	`Cmd` `Shift` `V`	face
Drop Held Face UVs
Painting UVs Carries the Texture
Mirror on X / Y / Z		brush, entity
Snap to Grid		brush, entity
Apply Volume Tier to Selection	`U`	brush
Move to Active Layer	`L`	any selection
Trigger	`Space`	entity
Simulate (Resume when paused)		entity
Pause		entity
Stop and Reset		entity
Apply Active Texture	`Cmd` `T`	brush, face
Make Brush Entity	`Ctrl` `T`	brush
Convert to Terrain		brush
Create Prefab from Selection	`Cmd` `[`	brush, entity
Break Prefab Instance	`Ctrl` `[`	prefab instance
Narrow to Selection	`Cmd` `N` (any tool)	any selection
Pop Narrow Level	`Cmd` `Shift` `N` (any tool)
Exit Narrowing

Cmd N narrows to the selection, narrows further when already narrowed, and shows everything again when nothing is selected. Cmd Shift N narrows when not narrowed.

View

Command	Keys
Warning Markers	`O`
Coarser Grid	`=` (any tool)
Finer Grid	`-` (any tool)
Bigger UI	`Cmd` `=`
Smaller UI	`Cmd` `-`

The View dropdown in the 3D view's corner.

Command	Keys
Unlit	`F1`
Lightmap	`F2`
Lightmap Scale	`F3`
Caustics	`F4`
Lit	`F5`
Grid	`Ctrl` `G` (any tool)
3D Grid
Wireframes	`Ctrl` `B` (any tool)
Detail Tint
WYSIWYG Tool Previews	`W`

Tools

Command	Keys	Right-click on
Cube Brush	`B`
Cylinder Brush	`C`
Cone Brush	`Shift` `C`
Ramp Brush	`Shift` `R`
Stair Brush
Arch Brush	`A`
Polygon Brush	`Cmd` `P`
Clip	`X`
Face	`F`
Vertex	`V`
Extrude	`E`
Entity	`Cmd` `E`
Prop	`Cmd` `Shift` `E`
Command Launcher…	`/` or `Cmd` `Shift` `P` (any tool)
Prefab	`Cmd` `Shift` `[`
Lightmap	`Cmd` `L`
Sky	`Cmd` `K`
Move	`G`
Rotate	`R`
Scale	`S`
Texture Browser…	`T`
Decal
Terrain	`H`
Decal Browser…
Edit Entity Properties	`P`	entity
Pick Working Plane from Face	`.`

G moves brushes and entities, or pushes faces when only faces are selected.

Help

Command	Keys
Manual…	`Shift` `F1`
Welcome…

Keys	Does
`Tab`	cycle the tier of new brushes; hold for the tier wheel
`M`	maximise the view under focus, or restore all four
`Esc`	leave the current tool; in the Select tool, clear the selection

Mouse

Where	Input	Does
3D view	hold right button, move	look around
3D view	hold right button, `W` `A` `S` `D`	fly; `Shift` faster, `Ctrl` slower
3D view	two-finger drag / with `Shift` / with `Ctrl`	orbit / pan / dolly
2D view	right-drag, or two-finger drag	pan
2D view	wheel, or `Ctrl` and two-finger drag	zoom
2D view	drag from a ruler with the right mouse button	move the cut of the view across from that ruler
any view	click	select; a face in face mode (`Q`)
any view	hold `Q` and click	select a face
any view	`Cmd`-click	add to or remove from the selection
any view	`Alt`-click	pick the far side
any view	hold `I` and click	select one brush of a group or prefab instance
any view	double-click	list everything under the cursor
any view	`Shift`-click a prefab instance	edit the prefab
any view	`Shift`-click a face in face mode	paint the picked-up UVs onto it
any view	press on a face in face mode, drag with `Shift` / `Alt`	move / extrude the face
any view	right-click	the right-click menu
2D view	drag / `Cmd`-drag	select / add in a box; faces in face mode

Inside tools

Tool	Keys
Cube, Cylinder, Cone, Ramp, Stair, Arch, Polygon	`Enter` keep; `Esc` take back the last click; `Cmd` `Z` / `Cmd` `Shift` `Z` undo / redo adjustments
Cylinder	`Left` / `Right` sides
Cone	`Left` / `Right` sides
Ramp	`Space` turn the slope a quarter; `I` inverse
Stair	`Space` turn a quarter
Arch	`Left` / `Right` sides; `Space` span the other axis
Polygon	`Backspace` or right-click remove the last point
Move, Rotate, Scale	`X` / `Y` / `Z` lock an axis; click drop; `Alt`-click move the pivot; `Esc` cancel. Rotating: `Shift` 45°, `Ctrl` 5°
Clip	`Space` what to keep; `Enter` cut; `Alt`-click a face to cut along it; hold `Alt` to highlight faces; `Esc` cancel
Extrude, face move	`Space` uniform / projected; click or `Enter` finish; `Esc` cancel
Vertex	`Cmd`-click add; `G` move; `X` / `Y` / `Z` lock an axis; `Enter` keep; `Esc` deselect, then discard
Face	`G` / `R` / `S` offset / rotate / scale with the mouse; arrow keys nudge; `Enter` apply; `Esc` cancel
Entity, Prefab	click place; `Esc` finish
Decal	click place; `Tab` place / adjust; `Esc` leave
Prop	click place; `Tab` place / select; `Esc` leave
Terrain	drag raise; `Shift`-drag lower; `[` / `]` ring size; `Esc` leave
Lightmap, Sky	`Esc` leave

While dragging, Shift snaps to twice the grid and Ctrl to a quarter.