Ad you might have seen, I commited some code and .ui file to add a
constraints dialog. Wanted to implement this as a model (with data
from OBFFConstraints) so it would be viewable as a tablemodel. I
started coding this but got stuck… In forcefieldextention.cpp
there is a line “// why does this not work?” when you uncomment the
line below, everything compiles fine, but the extention is not loaded
at startup. I tried to find the problem, but was unable to do so.
Could someone with a bit more Qt experience than me give me a hint? 
Thanks in advence,
Tim