Small enchancement addon for node editor and node grouping. Great if you have many (really many) node groups. A must have if you also link materials from liraries 
Enable it to add additional submenu with all your node groups nicely separated into recursive submenus with strong alphabetical order
Before:
- all node groups are in one huge list
- if you have linked materials with node groups of the same name - this node groups are not sorted properly (no alphabetical order) and have the same name as local ones (pure madness, no way to distinguish)
After:
- addon gets all nodes, splits them into “local” and “linked” parts
- and reorganizes them into hierarchy of submenus
Reorganization is based on “_” character in node group name, deepness is not limited.
Code: https://github.com/IPv6/kristallum/blob/master/blender/addon_experiments/nodeTools_v01.py
