Would love to be able to take a multiview and treat it as a full input for keying reasons. IE if I were to have a multi view with several parts that have the same chroma key values it would be great to be able to merge them on the virtual input and treat them as one when applying the chroma key to the whole group rather then each element one at a time. this would also allow for more complex layering in some cases by flattening a group down from a multiview to what would be treated like a source input of the combined view rather then retaining the separate parts in the multiview area.