Can Hubitat be a secondary Controler to ADT Pulse or vice versa

[Ryan780]

Welcome to Hubitat!

You cannot add Hubitat as as a secondary controller to an existing Z-wave network. Here's a post from Bruce (Hubitat staff) that talks about some of the reasons why they have chosen not to allow this:

Joined the Hubitat USB Stick to my ST HomeID

We’ve looked at doing this, and know that’s it’s doable. It’s basically making the stick act like a secondary controller to ST, which gets all of the z-wave devices downloaded to it. There is one significant problem however, and that is the who’s-on-first problem. It appears that the way you’ve done this leaves the stick as a secondary controller to ST. Have you determined that it all works in Hubitat if you turn off the ST hub? If both hubs are on, then either can control those devices, and…