Here are the answers:
1.Yes (the append query started as a make-table to initially create tempPending table which I then modified to add the composite primary key)
2. The append query doesn't "update"; it is a full refresh of the table as it is emptied by the first SQL statement. TempPending table has all the fields in the original PendingQry Select query.
3. See 1.
4.Yes, and it is now editable.
5. Yes.
Cheers,
Vlad