I have both 5121(2), and 1121's on my layout. None of my switches have indicators on the controllers except two with dummy lenses. The 1121's do at least have an lit indicator on the switch. A simple option is to wire them all the same so that when you push the lever down, the path is straight, and up is divergent. Helps a bit.
I looked at wiring these with constant voltage. It is a process that I found not worth the effort. You have to open up the switch body, and cut and splice the solenoid wires. If you have the wiring diagram it explains the steps in detail.
Welcome to the Forum BTW.