how to edit control points in a curve

Hello everyone.

Sorry this is a really entry level question. 

I have some issue with adjust curves through control point.

I made a definition of a curve in grasshopper and I would like to adjust the curve by its control points. 

Is there anyway I can do this in grasshopper not going back to Rhino and edit the control points?I know I can use Gene list, but how can I move them not in one direction but in three?

Thanks.