Yes! I have a layer accessible by a press and hold on my keyboard (mostly qwerty layout) that gives me arrow keys under FDSE, PgUp/Down and Home/End on 4,R,5,T.

Yes! I have a layer accessible by a press and hold on my keyboard (mostly qwerty layout) that gives me arrow keys under FDSE, PgUp/Down and Home/End on 4,R,5,T. It also has custom chords of ctrl + shift, ctrl, alt+shift, alt on the Tab, Capslock, Q, A keys. Really useful.