is there now or will there be in the future a way of having a song part tempo cut to 1/2 time? for example the breakdown in I Want You To Want Me by Cheap Trick?
If you mean by a main loop, then you can do this manually by editing the midi file and then re-adding it.
There are 1/2 time patterns, I’m thinking the Funk patterns have a few, if you just need a few bars of 1/2 time. in the editor program you create the song with the main beat and other variations and then insert your 1/2 time feel and then finish the song. Remember, you can only go forward, no reverse if you have more than 2 patterns In a “song”.
I do this all the time because I detest static drum patterns and I strive to mix them up in musical manner.