What title says :)
I think it would be as useful, if not more, to be able to pause click damage potions bonuses the same way you did with speed potions bonuses, it's not something you would use everyday -the same as speed bonuses- but it can be useful in some situations.
It would be nice to add the possibility to track achievements too, and well, I think "Quest/Challenge tracker" is not the best name in the world TBH and if you finally added achievements, even worse, so I'd call it just "Objective tracker".