Add missing symbls, and numpad

[arrigo1990]

Please add the missing symbols ( like μ [ micro ] ) and the numpad ...

[a-pav]

I like to have a numpad too.
I've seen that simple keyboard already has a numpad inside, it comes up whenever I come across a numeric input.

I wish that pressing ?123 would have opened that numpad, or better, a revised version of it which also offers access to other most used symbols like ()/,: etc. because the numpad I've seen only had space and backspace, besides numbers. Anyway, I prefer a numpad to a row of numbers any day.