Android App - bug? intended?

[leprechaun]

I've just bought the app for android and while playing with it I noticed that it is not possible to keep alpha pressed for typing variables or keywords.
That makes it annoying to type if not useless.

I don't know if that is a bug or considered ok or if I could do some tweaks to get it running.

Version 1.3.1.11226 on moto g4 plus

thanks