Have the ability to ‘clear all’ visibility conditions.
Yes, this would be handy.
But… (yes, I always have a “but” ), personally I do everything I can to avoid long strings of visibility conditions like this. Instead, I try to do all the logic in the table in an if-then-else column. The idea with that is to reduce my tab and component visibility conditions to a single statement (or none at all). So something like user-can-see-component is true
I find it much easier to manage and troubleshoot this way…
I do what you suggested now on new apps but on old ones, when I wasn’t such a newbie, I have historical visibility conditions in place and to remove them hurts my fingers and is a little tedious