# XR Pen
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**When to use XR Pen?**
1. **Visualize Complex Ideas**\
Sketch or draw directly in VR to turn abstract concepts into clear visuals, making ideas easier to understand and share.
2. **Enhance Mind Maps**\
Use XR Pen to add links and notes to your mind maps, helping you organize thoughts and build real-time connections.
3. **Annotate and Illustrate**\
Enrich your notes with diagrams, charts, and illustrations using XR Pen, transforming plain text into engaging content.
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## Enter and Exit XR Pen Mode
The XR Pen mode can be entered and exited by pressing the B button on the right controller (or the Y button on the left controller for left-handed mode).
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* The **XR Pen entry button appears when the PC is connected**. Once connected, the XR Pen objects will be loaded, and they will disappear when disconnected.
* Switching to left hand mode is not possible while in pen mode. it can only be done after exiting pen mode.
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## Drawing
Once XR Pen mode is activated, press the **trigger button** to start drawing.
### Size adjustment (Thumbstick up/down control)
* You can adjust the area size of the Pen, Eraser, and Select tools, with five levels of adjustment available.
### Undo/Redo (Thumbstick right/left control)
* Use the thumbstick to quickly undo or redo your last action.
### Straight line/circle gesture (Thumbstick press)
Hold the trigger button to draw a straight line. To draw a circle, extend the line to a certain length and then curve it back to the starting point to complete the shape.
### Move pen object
You can grab the pen object with the grip button and move its position.
## Tools
Press and hold the Tools(A) button on the controller and move left or right to select the tool.
### Eraser
### Select
The Select tool allows you to choose one or more pen objects to move or group them together. If you want to deselect the objects, simply double-click the trigger button in empty space.
### Group / Ungroup (thumbstick press)
* When pen objects are selected, press the thumbstick to group them.
* For grouped objects, press again to ungroup.
