It would be nice and less prone to error if the spacebar would toggle Enable and Disable tool paths. Yes you can right click however Disable and Delete both start with D. Yes I have done it a couple of time. 
Other programs I use, this spacebar toggle seems to be the norm.
I would leave it in the right click, and ask that the space bar be added as a short cut to quickly toggle.
I toggle all the time to clean up the view to only what I am working on at the time.
Thanks