On create PR, way to collapse all diffs?

(I’m a newbie here; please direct me politely to the correct resource/approach if this should be posted elsewhere or in some other way.)

When I initiate a PR in gitea, all diffs are expanded/revealed – ie, the arrow to the left of all files is turned down, and the diffs for all files are shown. For large commits, this can be overwhelming, and often I just want to scan filenames anyway. But there appears to be no way to bulk-collapse these expanded divs so that I can scan quickly, or browse just specific diffs.

It sounds like github had this same issue, and it was resolved by allowing the user to alt-click any of the closed div-expander arrows, and all expanded divs would collapse:

What is the mechanism to request a similar change to gitea? Or, if that functionality already exists & I’m just unable to figure it out, please kindly let me know what I’m missing (I’m on a Mac keyboard, so for me the ‘alt’ key is usually the ‘option’ key).