Is it possible in-the-box to create a PGV - containing a list of domain groups that match the naming convention XYZ_* ? Either dynamically updated - as the group member rule set does - or updated nightly the way group family is concocted?
In the gfx below - to the left of the Plus sign - I'd want to use the PGV to control the list of options based on the first 4 letters of the group name in our directory.
We like temporal groups - but want to further limit how they get applied by providing a drop down list of groups that match the naming convention for our 12 or so temporal groups - and require that the specialist set an end time before allowing them to save their temporal group choice on the page.