Hi Barry,
First, welcome to the Forum!
If you can’t control the secondary zones from the Yamaha, it will require a separate amplifier/preamp, fed by the Zone 2 and/or 3 RCA outputs. An older lower-end receiver with remote control, if you need that, would do the trick for minimal expense.
Delay will require outboard processing as well. Again, older home theater receiver could do the trick, if it will allow the delay to be set manually. Keep mind that it’ll be nearest speakers that will require the delay.
Regards,
Wayne A. Pflughaupt