https://forums.autodesk.com/t5/inventor-forum/moving-work-planes-size-and-position-not-dimension/m-p/5590093#M379676 <P>I just did a search for a forum thread in which <a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/486618">@johnsonshiue</a>&nbsp;(if I recall correctly) explained in some detail how assembly work features are different from part work features, but I couldn't find it. &nbsp;My recollection is that assembly work features behave as components, constrained to one another and to components in the same way that components are constrained to each other. &nbsp;I believe that post also addressed the inability to move assembly work plane representations (the outlines) off center. &nbsp;Perhaps Johnson or someone else with that level of knowledge would care to jump in with a short dissertation on the subject?<BR /><BR />Sam B<BR /><BR />Inventor Professional 2015 SP1 Update 3<BR />Windows 7 Enterprise 64-bit, SP1<BR />HP EliteBook 8770w; 8 GB RAM; Core™ i7-3720QM 2.60 GHz; Quadro K4000M</P> Mon, 13 Apr 2015 22:53:45 GMT SBix26 2015-04-13T22:53:45Z