How do you draw in an Editor Window and be able to move it to Scene View?

Hey guys, I am fairly new with Editor scripting and I am trying to be able to draw in the window I have just created. Using my mouse as the drawing utensil. I am stuck on trying to figure this out. I've looked through the scripting references and I have scene Handles.drawline() and Debug.drawline() but I am just confused on how to go about this. Any ideas?