Let's finally add the ability to create proxies for a specific sequence.

If you have multiple takes for a scene, and you grab selects to create a stringout, allow us to simply right click, etc, the sequence/timeline tab and "create proxies for sequence"

Then the auto proxy workflow would work like it does and make proxies for those clips online.

Currently to do this, if proxies aren't made for every clip (or not relinking! :/ ) we have to individually select each clip, go to the project panel, right clip, make proxy. Over and over. And with many clips this is just a time waste workflow.