Preview Zoom to Multi-Camera-View

I edit a lot using the Multicam view, but sometimes use proxied MP4's so I don't have to store the 4K footage until it's time to export. To maintain the sequence settings for 4k, I make use of the zoom feature in the preview so I can see what's going on. Unfortunately, in the Multicam View this is not possible, which increases the amount of time it takes to cut these segments exponentially. Can't add images due to client stuff, but it's easily viewable from the zoom box disappearing when the feature is enabled.