It looks very doable… Jeremy has a solution and likewise at Autodesk forum.
But I don’t understand the need for such a node for users in general. Shared Parameters is something there should be maintained on a company level, and they should focus on naming the parameters, let Autodesk take care of the guids. It is the guids that ensure that two parameters named the same in different settings doesn’t cause breakdown in data structures. So my aim is simple, don’t mess with the guids
Transfering values between families and projects, can you give an example where that is needed? I imagine that it is doable, but it might include some data middleware, like a txt/csv/xlsx file.