Allow collapsing any (or at least Canvas) columns in Expanded Row

I have several Canvas columns that I have shown in my Expanded row Layout. I’d rather not hide them, but sometimes they have a large number of images embedded in them and I’d like to be able to just collapse the Canvas Column temporarily to make it easier to navigate past it.

Obviously there are workarounds like just hiding the column and showing it, or putting all the content of the column inside a collapsible H1 or something.

But I just think this would be a nice little touch, to be able to collapse a property in that layout view without hiding it