Yay o/
No, you don’t have to enable them, except when they are useful to you. That’s just two Blender addons that we have fixed to get it working in Bforartists. The orginial Blender versions of those addons refuses to work without those small modifications 
It is possible that something went wrong with compiling the Mac version. I cannot test it, i don’t have a Mac. I will talk with our maintainer to make sure that the next Mac version of Bforartists has the addons really enabled. When the UI Flags addon is off, then you miss quite a few UI parts. It is broken in this state.