Registrate
"Registrate" is a word. It's used by organists, and means to choose the combinations of stops, couplers, and pistons to be used in playing a selection, also to fix them in the instrument's memory by means of the stop-setting mechanism, if there is one. "Registration" is the arrangement so chosen. This is not a new word. It's used by Albert Schweitzer in his book on J.S. Bach, written before 1905.