I'm trying to assemble a subassy which is made almost entirely of imported parts/features except for a datum plane I added. Of course in WF2 you have to use this stupid cryptic "find box" making much more difficult to choose what you want Rant Mode Off... I open the find box click on the arrow to choose a model and I get this error message when I select the subassy I'm trying to assemble "Only model in the scope models list can be selected" this sounds like the reference control box I've looked at the on the Assy I'm assembling to plus I've looked at the one in the component window and neither have anything checked that would restrict this model from being selected. Is my problem with reference control or is it something else? Thanks Mike