It looks like within Motion Studies, belts are not able to get animation keys (e.g., to either change their appearance or to move them).  I'm interested in moving a belt (from an explode standpoint) in order to show how / when to install it (not to show the belt running), but I can't do this if they don't have keys.

Do I understand this correctly?  Do belts not have this functionality due to their "in context" creation?  (I.e., they aren't "real" parts?)