yes, HVAC pro and the s2 box is what I use. I bit of a learning curve but a nice system once it sinks in. RSD Total control on the West Coast offers classes, 3-4 day cram session. You could look around out your way for Metasys and HVACpro training if you don't have a background in controls.... When you are looking to upgrade the system I would install a Tridium Niagara Jace with an N2 driver, in the Johnson world this would be an FX60 or 70. This will let you pull all the points into the new Tridium box and have an up to date user interface without changing out all the field controls (VMA's and UNT's) as the Metasys software is a bit "clunky" by today's standards. Message me privately if you need more information.