Chess Repertoire Trainer

Hello, I'm a dad that has to coach a bunch of young kids and I want to show them the London system to make it "easy" and streamlined. I'm terrible with these sort of app so I'm wondering if someone has built something for London on this app where we could use it to train the opening.

Are there any Plans to implement the ui in an autorotation mode? Or force IT to Landscape?

Will we ever be able to add multiple lines for ourselves in a singular file, if not what's the easiest way to enter different lines for myself.