I would pay real money toy a Lionchief remote that offers a display to show the engine (and info) similar to Legacy control and also hold up tp 99 engines. Each engine has its own remote code so I think its doable, yet it mheed to be affordable. No need for a rechargeable base though.
Right now I have 8 separate controllers plus a 3 engine remote, and I want to get more. I enjoy the Bluetooth option on he newer engines but when my tablet goes to sleep mode it shuts down, talk about emergency stop, like a Looney tunes cartoon, eeeerch!!!,
Therefore the hand held is still a reliable alternative.