Live Tethered Green Screen Software?

I've been asked to use a greenscreen at an event instead of a custom backdrop.

I have experimented with DSLR Remote Pro, but it's pretty hacky compared to running LR tethered. I can't imagine running it live.

Has anyone else done this? Any advice?

I use DSLR remote pro instead of LR because it's so easy to set up and run.

The green screen feature works, but you need a clean well lite green screen, and it will never work as well as shooting video.

Remember with a still image the software gets one frame of data to work from, while with video it gets ~24 frames to work from, and with the low resolution has a larger margin for error.

I use DLSRBooth, it does a pretty good job, and it's great for events.