# Keyboard & mouse shortcuts

Source: https://meptools.com/tools/ceiling-coordination-studio/docs/shortcuts/

`Mod` is **Ctrl** on Windows/Linux and **Cmd** on macOS.

| Shortcut           | Action                                  |
| ------------------ | --------------------------------------- |
| `Mod + Z`          | Undo last action                        |
| `Mod + Shift + Z`  | Redo last action                        |
| `Mod + S`          | Save project                            |
| `Delete`           | Delete selected item                    |
| `A`                | Auto arrange the section                |
| `Esc`              | Cancel mode or clear selection          |
| Mouse wheel        | Zoom in / out                           |
| Left-drag          | Rubber-band select — drag left to cross |
| Middle-drag        | Pan the view                            |
| Right-click        | Open the context menu                   |
| Arrow keys         | Move selection by 5 mm                  |
| Shift + Arrow keys | Move selection by 25 mm                 |

The mouse buttons are allocated CAD-style: left-drag selects, middle-drag pans, and
right-click opens the context menu rather than panning.

See [The workspace](/tools/ceiling-coordination-studio/docs/interface) for what the context
menu offers, and [Getting started](/tools/ceiling-coordination-studio/docs/getting-started)
for how these fit into a normal editing session.