How to set up second sonoff coordinator

Trying to add Z2M to HAOS. I’m very happy with my ZHA network but I like to learn and people are saying Z2M is more configurable.

So I bought an identical supported USB coordinator from sonoff, added it to my powered USB 2.0 hub along with my two original coordinators, I also have a Z-wave stick.

I haven’t had luck seeing the new stick recognized under devices. I’m also concerned that I may have messed up my existing Zigbee network because I lost connectivity between the original coordinator and many of the devices. I took out the second new USB dongle and reconfigured and I’m now back to where I was.

So what should be the order of doing things? If I put the second one in, will there be an immediate conflict of channels, will my devices try to migrate to the new one, and other than the configuration.yaml file for Zigbee2mqt, is there some other method to attach Z2M to the new device?

Thank you so much for your thoughts.