How hard would it be to plug in a bridge plug (so you don't have to cut into the harness) and hook up a switch in the console box to enable/disable skip shift?
Should be easy enough, if it matters that much to you to be able to turn the skip shift on and off.
I did this very thing with a 94 Trans
Am back in the day. On the center console, I had a lighted push button labeled "Skip Shift Off."
I was younger and had more energy then -- can't say it matters enough to me now that I would go to that trouble