Idea: Add a button that allows unchecking all the elements in the compile.
Doesn’t Option-Click on any item on the content item list applies for that purpose?
Ah yes that works.
However, I’m thinking of this as much from the UI UX point of view. I arrived at a point where I needed to uncheck a large number of items. I looked around and couldn’t immediately see anything in the panel to uncheck everything. I tried the approach of using Shift and selecting all the items, then unchecking one of the items but that appeared not to work.
Had I gone researching how to accomplish multiple “unchecks” I’m not sure that I would have looked at shortcuts and my cursory look at the manual searching for “uncheck” didn’t reveal the solution but perhaps I missed it.
So all in all the function seemed like something that might warrant a button of its own.
I suspect that the problem the developer faces is that Scrivener is such a wonderful rich application that its hard to decide what you put front and center. Still I make the suggestion for consideration.
Option-clicking on controls to enact bulk actions to similar items within a context, such as checkboxes and disclosure triangles, is just one of those standard Mac things that should always exist, hence it isn’t telegraphed or heavily documented. It’s like knowing that down-arrow at the end of a line is synonymous with End, or that Cmd-` will flip between an application’s open and non-hidden windows. It’s likely this trick works in many programs you have installed.