Finally its here. You can now disable blueprint nodes (impure only) by right clicking and it will not break the execution. 
Buy yourself a beer and tell the bartender to put it on my tab.

Thanks epic coders!
Is amazing :eek: I ask for this feature exactly two year ago.
04-08-2014
Comment BP node
YAY celebrate!

LOL!
(10 char limit)
it seems only work in eventgraph…
but it has no effect inside function.