https://forums.autodesk.com/t5/inventor-forum/inventor-assemblies-groups-promoting-demoting-etc/m-p/5697535#M370209 <P>phantom as said above or promote them into the assembly as you stated..</P> <P>promote will be better assuming these parts will get constrained in all different combinations depending on the top level assembly.&nbsp;</P> Mon, 29 Jun 2015 12:35:37 GMT mcgyvr 2015-06-29T12:35:37Z