It would be really great and awesome if you could change the Material Editor UI to Blueprint UI type. The Blueprint UI/Nodes are awesome. I would love to see that in Material Editor.
Don’t worry, this is something we want to do as we’ll! We are looking into it now.
Yaaaaay!!! 
Particularly, in the case of the blueprint UI you don’t have to hold down control to drag nodes around. Having this same functionality in the material editor would be a great usability addition.