Summary
Allow an existing Saved Selection to be overwritten with the current selection.
Problem:
When making a Saved Selection, I often find that I miss a few entities when creating that Saved Selection. When I go select those few missing entities and try to save that selection with the same name, I just get an error saying it already exists instead of an option to overwrite or add to the selection. I either have to make a new name for the full selection set or delete the old Saved Selection and re-save it. Either way is a lot of extra annoying steps.
Solution Proposed:
1. Add an option to overwrite an existing Saved Selection when saving a new selection set with the same name.
2. Add a feature to add or subtract entities from an existing Saved Selection.
Thanks!
