There is a jazz style that does exactly that - on first (and I think last also) chorus the A sections are Latin and the B (or B and C) sections are swing. You need to buy the jazz style
Pack.
Let me add in here for the developers that it would be great if that behavior were possible to set (as in a kind of switch maybe, or a different style button) for the whole song/all repetitons also. For example, I like to solo when performing on night in Tunisia keeping the style changes always, but I can't do that with iRealb - would be nice to.
You could create a separate button in the style picker called "Latin/swing all" (or something like that).
Respect.