Is there any way to remove the "Media Replacement" tab inside a MOGRT?

Hello all, 

I'm currently working on an analogue horror video, and I had recently gotten a new MOGRT to make the video look exactly how I want it, but there's one problem.

There's a "Media Replacement" tab which is pictured, and I dont want it AT ALL. I want to be able to edit things underneath the MOGRT so that it goes through the vhs effect, without me having to have an image there, so that I can get what I want.

If this is not possible, that would be good to know, but if there is a way to fully delete it that would be nice too. This is very annoying and stopping me from doing anything that I really want to within this video.

Thanks!