Node Editors: Create & Extrude Rerouters

shift+ctrl+D is a very handy shortcut in any Node Editor inside blender, it allows you to duplicate a node including its connections. What i'd really like to have is the possibility to do something similar with rerouters. In fact, when you are into BIG rigged node trees with a lot of groups inside groups and so on, you often change something and want to go backwards from a node or node group input to the main node group input instead of dealing with really small ui zoom. A possible shortcut (since it's currently unused and intuitive) could be E, like an extrusion, similar to what we do with curves objects vertices. In addition, it would be awesome if when pressing E with nothing selected a rerouter would apper under the mouse. Here's a little concept just to give an idea: