Good idea, but i think these changes should be one by one checkbox in settings, to never force it to devs that not want change it.
Make Vars category an active element, no only stetic functionality in My Blueprint tab. That from Graph we could call all vars in a category, like we can do in C++
Make Vars in MyBlueprint tab, drag and drop, in orden to arrange it how dev like. Or at least a setting to orderer it alphabetically.
Thanks !