I need another method to get a transparent output from Proclaim that can be used as lower third or full frame overlay over a video feed, other than plugging another monitor in just so OBS can grab its content (already using 4 monitors in the PC).

Proclaim needs to establish some way of making text and graphics available as a dynamic web page overlay on a built-in mini web server similar to OpenLP, so it can be added as Browser Source.

Or alternatively some kind of virtual screen output device that can be captured by another software, yet doesn't require a fifth monitor to be plugged into the poor worship PC.