Snap to selected curves hot key or modifier

[Gear maker]

5% of the time I really love the Snap to selected curves.  And 50% of the time it gets in the way.  I find that I do a lot of my node work with one finger holding down the option key to override the snapping.  Or I keep having to turn this on for a node alignment then off for the next several and so on.

 

Can we get a hot key or modifier that would turn on this feature when held down?  So it works exactly the opposite as it works now.

 

I appreciate it.