I guess I’m a bit late to the (2.8) party, anyway, here’s the update of BMax Tools for Blender 2.83.9 LTS. In addition to overall overhaul – I removed redundant tools such as layer manager or select-by-name dialogs, but also sidebar panel – I revamped the add-on on a few fronts:
- Clone Options is now essentially an interactive 1D array tool
- add-on now contains “tool tracker” which preserves tool selection across modes and workspaces
- background selection evolved into non-destructive “preview setup” (see image below)
- extras, which are now included right with the add-on as an optional install, add two significant improvements:
- synchronized X-Ray toggle, i.e. it sets both, wireframe and solid mode states, to the same value at once and toggles them in unison
- access to additional parameters for X-Ray – backwire opacity (note that X-Ray must be on and must be less than 1.0) and pose bone X-Ray
I also included some slightly modified toolbar icons because the stock ones didn’t look that great with light highlight colors (and the cursor icon was IMHO atrocious – but the beauty is obviously in the eye of the beholder 
).
Now some eye candy.
Preview setup comes with add-on, extended X-Ray settings with extras.
And here are the really only slightly modified icons.
Well, enjoy … I will too 
Download can be found at the top of the thread.