To add an object to a set:

1. In the Sets window, select a set in the Sets list.
2. Select the objects you want to add from the Viewer window.
3. Click Update to save the new objects to the set.

To remove a single object from a set:

1. Select the object to be disassociated from its set in the Sets folder of the Scene browser.
2. Right-click the object and select Detach x From y Set in the contextual menu, where x is the name of the object and y is the name of the set to which it belongs.

   The object is no longer associated with the set.

To remove multiple objects from a set:

1. Select a set in the Sets list.

   The objects in the set are selected in the Viewer window.

2. Deselect (Ctrl-click) the objects you want to remove in the Viewer window.
3. Click Update in the Sets window to save the changes to your set.