Change is scary. Hopefully you'll come to like the new UI (it certainly makes my life infinitely easier coding events going forward) but if not, well, unfortunately you can't please everyone.
Side button removal was necessary as it was obscuring ertain War Map buttons. Sadly, no matter where I put the blasted quick menu, it screws up something. I'm working on a fix, but Ren'py and Android don't play well together so what works on one device utterly breaks on another.