As the title says,. adding a controller to the elevator and activating the face before turning the structure into the elevator doesn't do anything once the elevator is turned into an entity.
Using tech 6.0.4 and core 5.11.0

To note without this functionality you cannot make an elevator more than 1 block high and expect to be able to set the floor from inside of the elevator, this is a pretty big bug.

When i get back from vacation I plan to get this fixed. currently you need to set a higher/lower floor first, then call the elevator there, then set the floor it is currently on.

That's the problem, i cannot seem to set it at all once the elevator is built, the entity object seems to block all interaction. I noticed that even if you set a block outside of the elevator, if you are standing inside you cannot interact with anything outside of it. I'll play with it some more, but this is what i've seen so far.