For what it's worth, my anticipated use case (Mouse-driven, I grant) was: Right-click to bring up an items stats. Mouseover provides the comparison sidebar for whatever the mouse is hovering over, allowing you to compare multiple items against the current one (be it equipped, on the ground, whatever) quickly. If you then found an item of interest, you'd right-click
that and get the detail view there, thus letting you mouseover more stuff as you went... essentially keeping a 'most interesting item to date' item on screen, and hunting for better.
A complication: The item you're examining probably wants some way of being highlighted, so once you've decided that nope, the first thing you clicked is best, you can find which one it was.
For keyboard, you'd presumably need to 'lock' the window pane and then select second items individually to compare, and then escape out again. This is much less intuitive, but... hm.
Button -> Examine.
Escape -> Closes the Examine window.
This is the current use case, as I understand it. (If I've missed something, I've been wasting keypresses...)
New:
Button -> Examine.
Next 'item selection' button -> Compare.
Escape -> Examine.
You can then go to a Next 'item selection' button as you see fit, or escape out as normal. So the normal use case (which I repeat, I've potentially misunderstood - reading the manual is on the to-do list because I am a very naughty person
) remains the same, but you can do more stuff while there, too.
I don't know, it's just a passing thought. The mouse use-case seems pretty solid, though.
biomatter - how insane would this drive you?