There are a lot of things to consider here...
1st of which is training - which would help you to configure and make it easier for you to use catalyst...
Your setup has been designed to work in a specific way. So while it would be possible to add layers in - I can't recommend any changes without knowing about the programming and installation - as any wrong suggestions could jeopardise your setup
I think the way to do this is to change or add to the programming on the vector lighting console initially.
Do you know who originally installed the system - maybe they can help?
Regards
Simon