I hadn't seen the Remote Panel functionality yet, so I edited my suggestion.

Could add an option to show only elevator call button.

The design could be something like:

That way the remote panel would be just a button to call the elevator cabin.
Useful to put the button outside the elevator and make it work just like a button to call the elevator cabin.

So when I'm out of the elevator and need to call the cabin, there's only 1 button to call it instead of 3 (up and down). With just one button, it's more beautiful and reduces the risk of making a mistake, in case the elevator has the shaft too big for several floors (I can't see where it is, so I don't know if I made a mistake)

I hadn't seen the Remote Panel functionality yet, so I edited my suggestion.