Create a button in the Groups-view, put in this formula.
Temp := @Prompt([OKCANCELLISTMULT];"Sort Group";"Press OK to sort the group
alphabetically. Note! Do not remove any member from the list!"; Members;
FIELD Members := Temp;
When u want to sort a group, just highlite or click once, then u will be
prompted to sort, confirm or reject.
Works on one group at the time.