---
title: "Options"
url: "https://help.maxon.net/c4d/en-us/Content/html/TOOLHAIRLIVESELECT-MDATA_MAINGROUP.html"
section_path: "Simulate Menu > The Simulation System > Hair > Tools, Functions, Modes > HAIR Selection > Brush Selection > Options"
element_id: "TOOLHAIRLIVESELECT"
group_id: "MDATA_MAINGROUP"
description: "This is the tool radius, which is also displayed in the Viewport."
---

## Options

### Radius

Parameter ID: `HAIR_LIVESELECT_RADIUS` · Range: [0.00..+∞]

This is the tool radius, which is also displayed in the Viewport.

### Visible Only

Parameter ID: `HAIR_LIVESELECT_VISIBLE`

If this option is active, only visible guides can be selected. If this option is not active, elements on the reverse side of an object will be selected as well.

### Restrict

Parameter ID: `HAIR_LIVESELECT_RESTRICT`

If the Hair object is polygonal, the selection of guides can be restricted to a specific polygon selection (Cinema 4D must be in polygon mode).

### Select Locked

Parameter ID: `HAIR_LIVESELECT_LOCKED`

If this setting is active, locked guides can be selected as well.

### Shape

Parameter ID: `HAIR_LIVESELECT_SHAPE`

![Image: 005107.jpg](https://help.maxon.net/c4d/en-us/Content/Resources/Images/005107.jpg)\
A small sampling of possible tool shapes (Aspect and Angle values were varied).

Use **Shape** to define the shape of the tool: **Circle**, **Box** or **Diamond**.

### Pressure

Parameter ID: `HAIR_LIVESELECT_PEN`

If you use a graphics tablet, use this setting to define which settings will be affected by the pressure of the pen.

### Aspect

Parameter ID: `HAIR_LIVESELECT_SHAPE_ASPECT` · Range: [0..10000%]

Use this setting to stretch the shape of the tool in a horizontal direction.

### Angle

Parameter ID: `HAIR_LIVESELECT_SHAPE_ANGLE` · Range: [-∞..+∞°]

Use this setting to rotate the shape of the tool.