Hi, we have adaptive part with adaptive Inner diameter. Measure value for this during placing into assembly isn't easy. We tryed made macro working this way:
1) select adaptive part by mouse
2) run macro with selected part (adaptive part in selecset)
3) Choose some cylindre in assembly by mouse click (Eg. shaft) + measure it's diameter by VBA.
How we can choose part/diameter and grab the diameter? (we need sometning like "objApp.StartCommand 25072" and grab Diameter results)
4) use measured value for update adaptive part - no problem (Call ObjAdjustablePart.SetAdjustables.....)
Do somebody have idea how we can try it? We have problem only with point 3. Thank you! 
EDIT:
NO IDEA? We only need choose cylindre in Assembly, no whole part. 