Jaz,
Is the elevator a new installation.? Or was it existing prior to the start of the building being made into what sounds like one side apartments and the other condominiums?

There is always a way for you to get the elevator to perform the way you want. The question is how and how much will it cost.

A whole new control system is the quick answer. But if you post some pictures of the controls and/or supply us with the type of controls that run the elevator. We may be able to give you a more cost effective alternative.