The actual method to add node at begin or end of track is really boring (sliding the last segment sometime dont work, sometime move entire track because of snap, etc...), this is really tedious.
Please add an item on the menu when right click on track to quiclky add a node on a track without problem. "Add node" to add a node a the click location = quick and simple
Brand new interactions and interfaces. 
Easy to use and quick to get started. 
