Hey, just update to 1.6 and press Shift+W. :) It doesn't work in Edit Mode at the moment because I didn't realize it should, so in the next version I'll add that. Thanks for the feedback.
(Also, for the record, in core Blender you can simply press W already to access these operators very quickly, but it's not a pie menu.)
It is annoying not to have the Shading pie menu anymore that allows you to shade smooth/flat in object and mesh mode, I have been so used to that being a thing for so long, that I had to get a different extension entirely with a different shortcut to do the same thing, but it doesn't even work in mesh mode.