It's action time! Power up the transmitter by turning on the switch, and then flip through the menus with the rotary encoder.
You can press the keypad buttons -- they won't do much yet, since we haven't turned on the receivers, but you'll see the latest pressed button light up. There are many unused buttons per menu item -- you'll have fun adding your own commands! -- but a few are preset. Try heading to the "NeoPixel" menu item, and press the first three buttons on the top row of the keypad. When pressed, the OLED display will read out "RED", "GREEN", and "BLUE".
If you scroll away from a menu item, when you return the last button that was lit will re-light. This is to tell you which trigger you last used for that item.
Here's the system with the NeoPixel Feather receiver powered up with a LiPoly battery. The three active buttons command the NeoPixel Feather to play a pre-designed color pattern.
Here's a test of controlling the NeoPixels from a block away. It works great!
Now it's up to you imagination to decide what sorts of amazing effects to control with your remote effects trigger box!