As stated, it's a part into a part, not a part into an assembly. It seems I have to open the part I want to insert, change it to the configuration I want, and re-insert it all over again. I was hoping I could do it the way you do it an assembly...or something like it.
If I recall correctly, you can by clicking "List External References" and then there should be a drop down menu. If that doesn't do it, I'll try to find a part that has a part inserted and give you the exact way.
Chris