A touch screen is my favorite idea, second favorite would just be my computer(the whole switching array is for changing the inputs on some 10+ monitors). Everything I need to control is RS-232.

My original plan had been to simple use serial to USB adapters, then hook everything up to a rasberry pi where the software would live. But this would mean effectively writing my own software program with GUI. Not beyond my capabilities, but a huge challenge.

If there's a product or software on the market that can do what I want without as much work on my part, I am interested.

If it matters, 6 of the 7 total devices are located in the same room(5 in a rack), with the sixth in the other room but reachable by many means.

The devices are:

LG 43UD79-B 43" monitor
Extron RGB-DVI 300
Connectpro DVI switch
Extron VGA 8x4 switcher scaler
Extron VGA 16x8 switcher scaler
Monoprice 8x1 HDMI switcher
As yet undecided 4k DVI switcher-scaler(still shopping)

All have console ports, all should be controllable.