# MOUSE AND KEYBOARD SHORTCUTS
### General
| Action | Shortcut |
| ------------------------------------------------------------------------ | -------------------------------------------------------------------------- |
| Pan | Hold MOUSE WHEEL or SPACEBAR while moving the mouse. |
| Zoom | CTRL or CMD + MOUSE WHEEL |
| Delete | DELETE or BACKSPACE |
| Back out | ESCAPE |
| Select Tool / Previous Tool | X |
| Undo | CTRL+Z/CMD+Z |
| Redo | CTRL+Y/CMD+Y |
| Brush size up | MOUSE WHEEL or ] |
| Brush size down | MOUSE WHEEL or \[ |
| Toggle grid | G |
| Toggle snap | S |
| Level up | PAGE UP |
| Level down | PAGE DOWN |
| User Layer 1 *(V.1.2.0.0 and later)* | 1 |
| User Layer 2 *(V.1.2.0.0 and later)* | 2 |
| User Layer 3 *(V.1.2.0.0 and later)* | 3 |
| User Layer 4 *(V.1.2.0.0 and later)* | 4 |
| Above Walls *(V.1.2.0.0 and later)* | 7 |
| Above Roofs *(V.1.2.0.0 and later)* | 9 |
| Below Water *(V.1.2.0.0 and later)* | ⌥ ALT + 1 |
| Below Ground *(V.1.2.0.0 and later)* | ⌥ ALT + 4 |
{% hint style="success" %}
Using the keyboard shortcuts allows you to zoom up to 4000% while other methods are maxed out at 800%.
{% endhint %}
### Object Tool
| Action | Shortcut |
| ------------- | -------------------------------------------- |
| Rotate | MOUSE WHEEL |
| Slow rotate | Z + MOUSE WHEEL |
| Scale | ⌥ ALT + MOUSE WHEEL |
| Cycle object | 🡅 SHIFT + MOUSE WHEEL |
| Mirror object | Hold A |
### Building Tool, Cave Brush, Water Brush, Material Brush
| Action | Shortcut |
| --------------------------------------- | -------------------------------------------------------------------- |
| Erase floor, material, terrain or water | Hold ⌥ ALT while drawing with the appropriate tool/brush. |
### Pattern Tool, Wall Tool, Path Tool, Building Tool (Freeform Shape & Edit Points)
| Action | Shortcut |
| ------------------------------------- | ---------------------------------------------------------------------- |
| Curve | Hold 🡅 SHIFT after setting the first point for the curve. |
| Delete the last point (while drawing) | DELETE or BACKSPACE |
| Delete a point (Edit Points Mode) | Hover over a point and press DELETE or BACKSPACE |
### Wall Tool
| Action | Shortcut |
| --------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Split a wall | In **Edit Points** mode, place your mouse between two nodes and hit DELETE or BACKSPACE |
| Merge two walls | Hold CTRL or CMD while drawing a wall until you meet a second wall end.
Requires Snap To Grid and doesn’t work with T or X intersections.
|
| Continue a wall | Place your mouse on the end of the wall and hold CTRL or CMD while drawing a new wall.
Requires Snap To Grid.
|
***
{% hint style="info" %}
## Related Mods
* [Minor Utils](/guide/custom-assets-and-mods/some-useful-mods/minor-utils.md) allows you to add keyboard shortcuts for each tool (needs [\_Lib](/guide/custom-assets-and-mods/some-useful-mods/_lib.md))
{% endhint %}
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