Hi John,
possible problem with icons is that they take too much precious screen space on a possibly small device. Do you use tablet or some big screen device with NCP for Android?
I'll can try running few experiments to see how the feature would look like.
Lua support for Android is unlikely, the actual app models for desktop and Android (multiple opened docs vs single, different editors, etc) would make the scripts for one edition incompatible with the other edition. This is just one of the problems.
Regards,
Miro