Question / Help Capture different parts of one source

sofawall

New Member
I am trying to capture Rock Band 4 using an Elgato capture card. I would like to separate the middle section, top-right section and left-hand section (notes, score and life bar) and display those while removing the rest of the input (webcam input with game footage overlayed on top, essentially). Using cropping I can easily isolate one of those sections, but can't seem to figure out how to get all 3 in.
 
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