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You’ve seen how actions and parameters can control the behavior of a single object in a block. You can also apply actions to multiple objects so they move or change in unison. The following example shows how you can apply more than one Angular Constraint parameter to control two objects:
1. Open the gatesample.dwg file. In this sample file, the part that will move are the two non-red objects. The red lines have been added to help facilitate the rotation feature of the block.
2. Double-click the object in the drawing to open the Edit Block Definition dialog box, and then click OK. The Gate block opens for editing.
3. Click the Show All Geometric Constraints tool in the Block Editor tab’s Geometric panel to reveal some of the existing constraints.