I haven't quite thought through the implications of it, but I just thought it would be nice if there was a way to toggle on a pickaxe ability, so that once enough mana becomes available, it'll use it - rather than having to right click with pickaxe, click the pickaxe abilities tab, then click the ability again, once you notice you have enough mana, while potentially losing some time mining with any assortments of timed buffs, if you're attempting to extend an ability.. Or miss out on chat questions :P.