4l80e trans need help with setup

[GRNOVA]

I am trying to figure out how to shift into p,n,r,d with my touch screen. Then incorporate a paddle shifter that would shift the gears electronically in 1,2,3 and would like to display the gears on my gauge panel. Is this possible can any one come up with a good way to do this.
I have thought of the retro tech for the park - drive gears, then twist machines paddle shrifter for the other gears. Can these work together or can I just use one or the other.