The shortcuts that save the most time, on the canvas and in the menus. The same list is in the app, under Help ▸ Keyboard Shortcuts; the others sit next to their commands in the menus.
On the canvas
| ← ↑ → ↓ | Move the selection 1 mm |
| ⇧ ← ↑ → ↓ | Move it 10 mm |
| ⌥ ← ↑ → ↓ | Move it 0.1 mm |
| ⇧H | Flip horizontally |
| ⇧V | Flip vertically |
| ⌫ | Delete the selection |
| Esc | Deselect, or cancel the line being drawn |
| ↩ | Finish the line being drawn |
| Space + drag | Pan the canvas |
| ⌘ + drag | Move without snapping |
| ⇧ + drag | Draw a square or a circle; keep or free the proportions while resizing |
| ⇧-click / ⌘-click | Add to the selection, or take out |
Pen and points
| Click / drag | With the pen: a corner / a curve |
| Space while dragging | Move the point being placed |
| ⌥ while dragging | Break the curve: move one handle on its own |
| ⌘ while drawing | Pick up a point or handle already placed |
| Drag on the first point | Close with a curve (⌥: the first segment stays as drawn) |
| Double-click | Edit a path's or polygon's points |
| Click a segment | Add a point there |
| ⌥-click a point | Corner ↔ curve |
| ⌫ on a point | Delete the point |
| Esc / ↩ | Finish editing points |
Edit
| ⌘Z / ⇧⌘Z | Undo / Redo |
| ⌘X / ⌘C / ⌘V | Cut / Copy / Paste |
| ⌘D | Duplicate |
| ⌘A | Select all |
| ⇧⌘B | Break apart: one object per piece |
| ⇧⌘L | Lock |
| ⌥⇧⌘L | Unlock all |
File and view
| ⌘N | New project |
| ⇧⌘N | Free projects |
| ⌘O | Open |
| ⌘S | Save project |
| ⇧⌘E | Export G-code |
| ⇧⌘I | Import an image |
| ⌘+ / ⌘− | Zoom in / out |
| ⌘9 | Fit to scene |
| ⇧⌘P | Preview the job |
Machine
| Esc | Stop the job, while one runs |
| ⌘P | Feed hold |
| ⇧⌘R | Resume |
| ⌘⌫ | Soft reset |
| ⌘U | Unlock the alarm |
| ⌘0 | Go to origin |
| ⇧⌘H | Home the machine |
Esc during a job stops it. Outside a job, Esc deselects or cancels what you are drawing; while a job runs, it is the quickest way to stop it, like the Stop button.
Checked on Lùmen 3.6.1.