P: Tether Capture Filter

In October 2021 there was a drop down filter (Lower right of the screen) in LcR. The client could view the images as they were being shot and just press "P" to remove the undesired ones. Once the shoot was done the only images in view were the "picked ones". I've used the other filters but they are a bit more cumbersome. It was the quickest and easiest way to view and delete images live. How do we get that back in the software? Thanks!