I’m using a similar approach to @ariehen’s, as there is no “right click,” but you can skip a few steps.
You’ll find a wrench 
on this toolbar at the end (slide it with your finger).
… click on it, and waaaaaaaay down you’ll find commands for Highlightr:
I’m using only Green, but you can add Open and Remove shortcuts (I didn’t try!), I guess, and you’ll have more control over it.
Hope it helps … cheers, Marko 