FWIW my personal crib for this topic now reads
activate GRID RECORDING mode to copy/paste Trigs, complete with all parameter lock settings
Hold the [TRIG]s and press [RECORD] to copy
Hold the [TRIG] key to select and then press [STOP] to paste
Hold the [TRIG]s and THEN press [PLAY] to clear trig NOTE
Hold the [TRIG]s and VERY QUICKLY press [PLAY] to clear ALL trig locks
Hold the [TRIG]s, turn the encoder for the trig lock, and press [PLAY] to clear one trig LOCK