3 things i'd like to do in Musescore...

I love using Musescore but I'm not very good at it. I have an idea in my head that I've started, but I've quickly hit 3 snags. I know there are work-arounds, but there must be a way to...
1) Specify "swing" for an 8th not sequence so Musescore will interpret it "right" during playback.
My work-around is to switch to 12/8. Not very satisfying... :-(
2) Specify "play 2nd time only" or "tacet 1st time" so playback honours the notation.
Workaround is to use no repeats, just straight through, violating my law of conservation of paper. :-(
3) Explicitly (no tricks!) indicate a tied note in the 1st ending to that note in the first bar of the repeat.
Of course this part is also "play 2nd time only". How do I notate this so playback gets it "right"?
Workaround is the same as #2.
I'm just a "hack". So please don't say "just do this and this". I'm trying to do these 3 things at once. So I'd really like an 4 or 8-bar snippet (one horn is fine) that accomplishes this. Or maybe you have done this in a published chart that I've not noticed. I've looked unsuccessfully at a lot of swing charts as well as simple google searches with no luck. Maybe my search terminology is lacking.
Thank you for your help! Much appreciated.