Before I dive into and spend time on it, just wondering if anyone has tried to alter the new Calendar Pro to a "one-window" solution (ie so that's there's every only one window open at a time)- for various reasons I have that criteria, and before purchasing, just wondering if anyone knows if this is simple to do or are there methods used that would be difficult to convert to a one-window style?
Thanks in advance for any help!

We've had a couple customers do this and I think they're happy, though this isn't a mod that is "built in". You could so through the scripts and suppress the new window and close window commands OR have the new windows maximize so it "feels" like a one window solution.

We have some processes that happen on off-screen windows, and you'd want to leave those in place so you don't get a lot of screen flashing.

Aside from that it should be pretty easy to do.

Hope that helps,

John