Here’s a quick tip for us RadioPopper users.  Consider using color to match your RadioPopper JrX Studio transmitters power adjustment knobs.   Identifying color is much faster than looking at dip switches and numbers are too hard to see from any distance away.  The label is just colored electrical tape.  I matched the receiver to the knob by color an made sure there was a spot of tape on each side so I’d be able to see it from any direction.