This conditional object is part of the Data retrieval loop when retrieving Multiple rows (either all or distinct only). It is implemented as follows:
Drag this conditional object into the procedure and connect the Retrieval object to it. Connect the Yes outlet to the chain of executable objects that process the return rows; then connect the tail of of this chain back to the Retrieval object:

Please Note:
No other object may be used as a connector between the Retrieval box and
the More rows found? conditional object in a procedure.