Hey @Ondrej_Pernica, welcome to the forum!
Currently, the +JUMP flag only works on STOP locators, but I get the idea of having some sections you don’t want to necessarily play in your song, but need to be able to jump to just in case.
My proposal for this would be to have a separate locator called something like ALTERNATIVES or SKIPPED which you can put before the end of a song. All sections that come after it and before the SONG END locator will be seen as being part of the song, but when the playhead hits the SKIPPED locator, AbleSet will jump to the next song in the setlist.
Alternatively, I could imagine extending the automated jumps feature to allow jumping to the next song at the end of a section, e.g.
Would one of these work for you? Which one would you prefer? 