I don't understand what you are saying. With the board the he has you can be listening to all 24 tracks if if you are only recording on 1 track. Like adding maracas to track 24 and listening all tracks 1-24.
You can arm individual tracks but you need to select if you want to make an 8, 16, or 24 track recording. So if you select 24, you arm whatever tracks you to record on. Maybe 1-6 for drums as an example.
I think. The HD24 is a great match for that board and it so simple to use. I just pulled mine out of moth balls and am setting it up with plenty of patch bays and all my old outboard gear.