I was thinking of using the track colors to define electrical blocks when the design is more set. Colors can have a lot of purposes.
Putting the tracks on multiple layers helps but does not completely stop accidentally moving stuff. If you use lots of layers, at least it limits how much stuff is visible at one time. It seems like at times I have changed other layers even when they are turned off. Not sure how this happens. Operator error.
When you use a lot of layers like I do, it can get confusing and I often goof up being sure about which is the "active layer". The undo function helps too when you accidentally move something.
Bill
