We don't have a grand master plan that we could pull out and check whether your feature request is included or not. It probably doesn't make sense to expose every single setting through the config portal, no?
Thanks for the heads up about the 3kudelta fork. Of course we can't stop people from forking and modifying our code, that's the whole point of it being open. Needless to say we would appreciate if people considered feeding back changes to the upstream repo. The diff between the two master branches doesn't look too bad, though:
https://github.com/ThingPulse/espaper-weatherstation/compare/master...3KUdelta:master