Hi guys, first time poster. I work as a RTI and URC programmer for a local audio/video shop. I'm fairly fluent in Universal Remote Control's interface and IR drag and drop; but I am just starting on RS232 stuff. I have a bit of experience in it, but I struggle sometimes.

I'm actually programming our K4 wall panel for the demo theater and am stuck on the lens for the C3XE. We have the Projector, RP6 and the K4. I need to be able to switch back and forth between anamorphic and letterbox via 232. Anyone have any suggestions or tips? Thanks in advance.