FYI, I’ve just published version 2 of my Fibaro Dimmer 2 advanced device handler. It was originally based on hajar’s device handler but I’ve added lots of extra functionality into it including full parameter synchronisation, multi-channel device associations, protection modes, fault reporting, and advanced logging options. 
See here: [RELEASE] Fibaro Dimmer 2 (FGD-212) - Advanced DTH (V2)
All feedback welcome!