Render Shadows and Reflections on Transparent Plane? (preferably in EEVEE)

I know there is now a shadow catcher option in 2.8, that I can use on the plane in cycles. I was wondering if there was a way to “catch” reflections as well? Similar to a piece of glass, but without any other material properties aside from the reflection itself. And is this possible to do inside of EEVEE?
Thanks for any advice

I guess you track a scene which has a mirror, you add something to it and want that object to appear on the mirror or something?