Add to unison-gui "Open file" and "Open containing folder in file manager"
Sometimes, I want to do some advanced file management / deduplication / comparison that may not be possible with Unison itself and best done with a file manager app.
For those situations, in the file synchronization GUI (I'm using the GTK version in 2.53.0), after the sync check shows results comparing the differences between two locations, I would like to be able to pick one file/folder row and choose "View in File manager" (from an entry in the menubar, or right-click, or toolbar button) so that I can browse the containing folder, ideally with the file pre-selected/scrolled (like Firefox, EOG, GThumb, "Video Downloader", etc. are able to do; see the _open_finished_download_dir method in Video Downloader for an example of how this works, with multiple fallbacks).
Alternatively, if you want something even simpler, you can probably achieve this just by issuing the xdg-open the_folder_path command and the desktop environment's file manager will open that folder, though it will not preselect the file.
Are you intending to implement this, and are just asking if it might be merged if so? Without someone writing the code, it is highly unlikely to happen.
I unfortunately don't have the skills needed to implement it, I was simply filing it as a low-priority "wish" / RFE, in case someone else encounters it and has time & skill to implement it :)