Prior to 10x users could facilitate the selection of only topology nodes by using the 'N' key. This made it easier to break off an edge and reconnect it at another intersection. While this can still be accomplished at 10x, the user now has to zoom in to be able to click the perfect spot to find the node. Sometimes it will take the user several tries.
It would be nice if the user only had to hold the 'n' key and make the selection once.