Bell Ringing Button Options

The bell feature is awesome, especially with a Di2 bike, but on my non Di2 bike I find taking a hand off the bar to tap the screen and then accurately tap the bell button a little difficult when you're coming up on someone quickly.  It would be nice if there was still a remote accessory that could be used to do this, but since that seems to no longer be an option how about allowing the lap button to be repurposed to ring the bell?  I don't know about everyone else but I don't think I've ever touched the lap button on any of my Edge devices and a physical button is easier to find than a button on the screen.