I have been working on getting an SX80 turned into a standalone "glorified webcam" as well and I am close to having it working the way I would like. Current problem I am having is getting the macro programming correct for a Speaker Track/Presenter Tr...

I tried the macro Maguns posted and got the same result with a momentary loss of video but changing the delay value to '400' instead of '480' fixed that issue on the one SX80 I have tested it on.