---
title: "Options"
url: "https://help.maxon.net/c4d/en-us/Content/html/TOOLHAIRMOVE-MDATA_MAINGROUP.html"
section_path: "Simulate Menu > The Simulation System > Hair > Tools, Functions, Modes > HAIR Tools > Move > Options"
element_id: "TOOLHAIRMOVE"
group_id: "MDATA_MAINGROUP"
description: "If this setting is activated, a link will be established between the guide points, i.e., the distance between individual points remains the same. If you …"
---

## Options

### Hair IK

Parameter ID: `HAIR_MOVE_IK`

If this setting is activated, a link will be established between the guide points, i.e., the distance between individual points remains the same. If you move a guide's tip, the other tips will follow. If this setting is not active, the points can be moved independently, without affecting the others (just like moving Cinema 4D spline points).

### Collisions

Parameter ID: `HAIR_MOVE_COLLISIONS`

Activate this setting if you do not want guides or guide points to penetrate the hair-covered surface. This setting only affects polygon objects on which hair grows.

### Coll. Radius

Parameter ID: `HAIR_MOVE_RADIUS` · Range: [0..+∞m]

This is the minimum distance guides or guide elements that are moved should maintain from the hair-covered surface.

> **Tip:** Switch to the **Root** mode if you want to move complete guides without altering them. The guides must first be released from the surface with the **Unroot Guides** option.