My Home Producer 8 is at the service center getting a new device code loaded so I can't test anything now. The instructions say that DVD isn't supported in the volume lock feature. You could use the Home Theater mode - OR -

You could use the Key Mover feature to copy the main volume controls to the DVD or use the advanced codes (when you get them from UEIC) to program the DVD volume to control your receiver volume.

There are only two macro buttons. You could possibly use one of the 10 timers for regular events to simulate another macro button.

Mike