Adding a zone valve

[Johnconnor]

Im working on a heating system that's currently all wired into an ufh wiring center. Another zone on a different floor is being installed of heaters (no actuators).

My question is, would you wire the new zone valves and stat into the existing wiring center and use one of the free actuator terminals to connect it all up as there's no other space or install a serperate wiring center next to it?

Thanks