I'd like to have a way to change the default "Edit In" application. Right now, LR defaults to the latest version of Photoshop installed on the computer and there's no way to change this. Yes, you can select a secondary application, but the "Open in Layers" and "Merge to Panorama" options only work with the default application.
Given the recent problems with Photomerge, etc. in CC 2014, it would be nice to be able to bypass it and use an earlier version -- with these time saving options in the "Edit" menu.
(sorry if this has already been posted -- I haven't read the entire thread)