As usual, this discussion got way off track! All I want to do is MANUALLY control each of the three lights on each signal. I have located and purchased 3-position mini-toggle switches that will enable me, or another person, to select which color light on every signal as appropriate.
I need to manufacture my own track schematic on a board and mount these mini-toggles in a centralized location. The dispatcher, via hand-held walkie-talkie, will be able to verbally convey orders as well as regulate the flow of traffic via Block Signals.