Hello

I need to know if I can tune my trans to hold a gear on 4Low

Trans : 6L80

For example:

If I was on 4Low and I put the car on manual shift mode on 3 so if i start moving it will shift from 1>2>3 and then hold the gear, so If i floor it it will be on 3 and not downshift and if I decelerate it will still be on 3 unless I tap down to downshift or come to a stop

Thanks