| Left drag | rotate |
| Ctrl + left drag / middle drag | translate |
| Right drag (vertical) | zoom |
| Scroll | contour level of the ● map (Shift: 5× faster) |
| Middle click / double-click atom | centre on atom |
| Left click atom | label / select atom |
| Drag an atom while refining | pull it |
| Space / Shift-Space | next / previous residue |
| Ctrl-G or G | go to residue |
| + / - | contour level up / down |
| N / M | zoom in / out |
| D / F | slab thinner / thicker |
| R / Shift-R | refine triple / sphere at the last clicked atom |
| Enter / Esc | accept / reject refinement (Esc also cancels a tool) |
| W | water at screen centre |
| Y | add residue at terminus of clicked atom |
| A | best-fitting rotamer for clicked residue, then refine |
| Q | pepflip at clicked residue |
| U / Ctrl-Z | undo |
| C | toggle centre cross |
| L | clear labels |
| ? | this help |
Click anywhere to close.