I'd love to be able to more easily pull a parameter in from another file in the same assembly. I imagine this as a function added to the dimension / feature "Measure" "List Parameters" flyout.
You would select "Link to file" (or whatever) and then select the source part / assembly from tree or directly clicking on the part itself and be presented with the "Link Parameters" dialog as it currently appears.
The link would be established and the selected parameter would then be used in that dimension / feature
This should also be added to frame generator offsets (which doest even have "Measure" at the moment.