Show Item Tooltips Keybind?

What do/should the [Options][Keybinds][Show item Tooltips]/[Show items (filter common)] keybindings currently do? (They default to “X”, and “Z”.) I have the filtering set to Magic+ on the HUD and none of these keybinds seems to have any effect. (Although “Z” does grey out the action buttons in the toolbar when held down.)

I’m specifically looking for a way to temporarily hide all loot while I’m fighting but to return to my selected filter level when I’m done. Ideally a toggle, but a hold down would be fine too. (Frantically clicking on the HUD filtering level to cycle it isn’t cutting it :p)

I’ve tried both Google and forum searches but have come up empty – at least for the current version of the game (many of the hits clearly relate to changes to this functionality over time but no longer appear to be relevant). Sorry if I missed something obvious!

You could do the opposite (I’m unsure myself what those are for)

BUT if you filter it to high level (for exemple Legendary) and then hit Alt once the fight is over it will show the item on the ground. Just need to hold it while picking stuff and let it go while exploring/fighting.