Not sure if this is a bug, because I don't know how it's supposed to function --
I am guessing the bottom sign is to customer enter floor numbers/names? If so, they do not seem to be working in Lift 50...

Otherwise things seem to work well..

Question - Is there a way to customize it so that you can have a floor every 3rd block instead of 4th? I am trying to retrofit a tall building I have with the elevator, but each floor is 2 blocks high, not 3..

Make sure the floor text is on the second line of the sign for a custom floor name. It should allow first or second line so I'll leave this issue open. You will have to cycle the top sign as it will not update automatically.

While it is possible to code Lift to have shorter elevators it would require a new floor button layout. My concern is that it could interfere with other sign based plugins.