Today we have the possibility, in a Procedure, to clear the Cube with existing selection ("Use current selection") or clear the whole Cube (default).
If you only want to clear on specific Entities you will need to setup a save & restore selection and/or de-select & re-select specific Entities.
Suggestion:
Give the opportunity to select which Entity selections to keep or you can also tick "Use current selections".
Similar to when selecting Tuples.
Below, screenshot from tuples list.
