I would like to be able to change the type of line and the number of the reference points directly in the project, for adaptative families that use arrays, instead of making the family from scratch (basically).
Also, the ability to have a spline through points and not through points would be very nice also!
PS: vote for this one also
https://forums.autodesk.com/t5/revit-ideas/move-multiple-point-elements-based-on-single-gizmo-action...