Extended modules > Relations > Relation sets > Create a rigid relation
  
Create a rigid relation
A rigid relation links two or more objects so if one is moved, the others move with it so they stay in the same position relative to each other.
For example, the blue, red, and green boxes have been linked by a rigid relation. If you move any of the boxes, the other boxes will also move.
To create a rigid relation,
1. Click Relations and then, in the Relations Mode group, click Parametrics.
2. Click Relations and then, in the Create & Modify group, click Rigid. The Rigid dialog box opens.
3. Select the 3D Elements you want defined in the relation. To select multiple elements, press F2 and use the Select dialog.
4. Click OK to complete the operation.