I am currently attempting to create my first SSP assembly. I created a couple of initial sketched that I saved as parts, inserted them into my assembly and started modeling using those sketches. Everything worked fine until I realized that several of the virtual parts I had created should have been placed in sub-assemblies.

   Naturally when creating sub-assemblies we loose references. I have placed the SSP sketches in the new assemblies but they don't appear to drive the parts and even though the parts indicate they have exterior relations to the original assembly, I can no longer drive the parts from there either.

   Is there a way to reattach references or is this a learning experience and I figure it is always easier to model something the second time?