I have an active system with a GC3 panel and several sensors and locks in place. Can I use my old CP11 panel as a secondary panel in my garage? If so what would be involved to get that operational. Old panel is reset and I have installer code. An additional note is that the GC3 appears to have been set up as a secondary panel, I can only assume they left the old panel as the primary when they installed the new panel? Old panel is from Vivint, new is from Fluent.