Thanks for having a look 
I haven’t decided yet what to do with the texture stuff. That’s why ^^
Ideally you have everything important at one look. And the texture area has not this much nodes than the other two main categories. But yes, those categories could go into the modify tab. Good idea
Don’t expect fast results. I have currently lots of work with updating everything for the next release. The new addons makes trouble. So this issue has lower priority at the moment.