Feature Request: Add ALT control when dragging node line to duplicate it

Most node software interfaces have a method where you can do this. For example, you have a VAE feeding into a node pretty far across the graph from the loader. But you have an decoder right in front of you that is hooked up. Holding ALT (just an example) when clicking on the node point and dragging, you do not disconnect the existing VAE spline, but you create a new spline that is already connected back to the checkpoint loader way across the graph. This would be an amazing timesaver for all of us.