Well..
In fact I planned this feature for 1.xx versions, but two last evenings was enough to take mess with it.
Macro nodes! :)

Other changes:
Added dynamic mousewheel delta adjusting (Knob/Slider nodes)
Fixed Extract node bug
Fixed Polyline nodebug
Fixed Mouse scroll glitch
Changed Node info windows scroll method
Minor interface improvements

Attention!
I've made changes in getInputData function in core.js.
It's one of the most important and frequently used functions in nodeeditor.
Please test your node projects! Everything should work good.

http://moi.maxsm.net/nodeeditor