This thread is closing for the new beta thread; however, I want to mention that I think this is a good idea and the option can be added for Convert in general. I will attempt to add that for the release candidate. Like Reverse, it will also add up to 15 seconds of additional footage before and after to facilitate transitions and revising edits. Currently, when a convert job completes it replaces the source of all matching clips in the project. When this option is turned on, it will not do that and only replace the currently selected one.