Maybe adding an option like "Bury X Bones" would be a better deal?
Would be an improvement, though I'd say that's just making things overly complicated. You literally have to click on the ground to cancel any further burying, that isn't that hard.
I think it should stay the way it is,
otherwise it should be By clicking on one bone constantly, you will bury the rest of them one by one.
Might be a better way, if you bury the last bone in your inventory it will bury all the ones before it. Something like the old herb cleaning code, this is actually a good alternative.
this would cause a lot of macroing.
I really do hope you mean it makes it easier to macro, because it sure as hell doesn't drive anyone training prayer to use a bot. I full well understand that it would be easier to macro like this, but it also makes it easier not to. Why put the effort into making a bot for it when the skill itself already allows you to bury an entire inventory in one click? Take mining and woodcutting for example, one allows you to fell a tree for pretty much a full inventory of logs and one lets you mine every single ore. Take a guess at which one of them is botted more often.
Quality of life changes do not increase macroing, they in fact reduce the chances of someone getting into botting in the first place.