Controls where editing is done on single or multiple records.
Obj.dbEditRecordScope = "Single(Def) | Multiple"
Note that in Delete mode, if you do not select unique bookmarks, the selected records might be less than the actual number that matches the selection criteria and resulting a '311' error. If you see this error, the sql statement is retrieving more records to delete than the displayed records.
Obj.dbEditRecordScope = "Multiple"