On Windows, use Ctrl where these say Cmd.
- Cmd+Z: undo. Cmd+Shift+Z: redo.
- Cmd+X, Cmd+C, Cmd+V: cut, copy and paste.
- Cmd+A: select everything at this second.
- Tab / Shift+Tab: select the next or previous object.
- Tab inside Position and size: move from one field to the next, through Left, Top, Width, Height and Rotation. Each field is applied as you leave it, so undo steps back through them one at a time.
- Arrow keys: move the selected object one pixel.
- Backspace: delete the selected objects.
- Shift while dragging: turn off snapping.
- Esc: close the open menu or dialog.
Undo keeps every step while the editor is open, but the history is cleared when you reload or leave the page. The editor doesn't save
automatically, so save your project before you go.