OP-z midi program change on all channels?

I was wondering whether OP-Z can send program change messages on other midi channels than 1.

I’m trying to build a compact setup with OP-Z as the main sequencer.
The problem is: Op-z sends program change messages only on channel 1.
So what if I want to sequence two external synths, and have them on different midi channels? How do I get use of program change? Am I missing something?