Using FaceBook live as a video source

I was asked to help out a church other than my on on a problem they have. They are running VMIX to send their Live Stream to FaceBook. But, they use Quelea to send a signal to the monitors in house at the front of the church. The pastor would like to have the ability to toggle from the Power Point presentation on the in house monitors to the Live Stream. Is it possible to have Quelea take the Live Streaming video from FaceBook Live and send it to the in house monitors also? In the control room, they are using 2 different monitors for VMIX and Quelea. I thought maybe a screen capture would work but I don’t see an option for that.

Any thoughts?