Thanks a lot for your swift reply.
My workaround for Item 2:
I install a virtual display software (https://www.amyuni.com/forum/viewtopic.php?t=3030)
Startup EasySlides and set one of the outputs to the virtual display
I can then use OBS, vMix… to capture that window/display as an input source,
also allows me to share ES screens for conferencing software like freeconferencecall, and zoom, during virtual church services.
Just so that I don’t need to buy/upgrade the pc/laptop for more graphics cards while away from the church setup.
the software is (usbmmidd) is of opensource