^ Single Hotkeys ^ ^ Key ^ Description ^ | Caps Lock | Specific Element Erase | | Insert or ; (semicolon) | Replace mode | | TAB | Circle/Square/Triangle Brush | | Space | Pause | | Q | Quit | | Esc | Quit | | Z | Zoom | | S | Save stamp (+ Ctrl when STK2 is out) | | L | Load last saved stamp | | K | Stamp library | | C | Cycle view mode | | 1-9 | Set view mode | | P | Save screenshot to .ppm | | F | Pause and go to next frame | | G | Grid | | H | Show/Hide HUD | | D | Debug mode (+ Shift when STK2 is out) | | I | Invert Pressure and Velocity map | | T | Vine mode | | W | Toggle gravity modes (+ Shift when STK2 is out) | | Y | Toggle air modes | | U | Toggle ambient heat | | R | Reset LIFE generation (when in Debug mode) | | ~ | Lua console | | = | Reset pressure and velocity map | | [ | Decrease brush size | | ] | Increase brush size | | B | Edit decoration layer | | ; | Replace mode | ^ Key combinations ^ ^ Key ^ Description ^ | Ctrl+C/V/X | Copy/Paste/Cut | | Ctrl+Z | Undo | | Ctrl+G | Toggle display of Newtonian gravity field | | Ctrl+B | Toggle display of decoration layer | | Ctrl+Cursor drag | Rectangle | | Shift+Cursor drag | Line | | Shift+Alt+Cursor drag | Line snapping in steps of 45° | | MMB / Alt+LMB click | Sample element | | Mouse scroll / { } | Change brush size | | Ctrl + Mouse scroll | Change vertical brush size | | Shift + Mouse scroll | Change horizontal brush size | | Shift + Ctrl + R | Horizontal mirror for stamp (need stamp preview up) | | Ctrl + R | Rotate stamp counterclockwise (need stamp preview up) | | Ctrl + Arrow keys | Shift stamp in the direction of arrow key one pixel (no walls) | | Ctrl + L alternative button | Select subject for Specific Element erase | | Ctrl + = | Reset Electricity | | Ctrl + Shift + LMB/RMB | Fill |