As far as the belt programming, yes that is done thru the on screen menu.
The non-proprietary thing is a load of crap. It's 100% proprietary equipment. Unless you work for Schindler, you won't have access to manuals or tools for the most part. We all know the other companies reverse engineer the controls just as Schindler does to them.
Even with me working for Schindler, its hard for me to navigate the controllers in these units because I don't do it on a regular basis.