One more thing... I tested your KFD, but an error shows up:
USKB Statkeybar "AUTOEXTERN.LEISTE1" is unknown.
I tried renaming the STATKEYBAR in the declaration from KeyBar into Leiste1
but the error persists and buttons don't show up.
P.S. This robot had previously a KFD from another setup, i removed it,
does the KFD files has other external references/dependencies?
Thank you