Photoshop: JDI: make double-clicking the zoom or hand tool a spring-loaded event.
Double-clicking the zoom or hand tool on the toolbar allows one to quickly change the zoom ratio to fit or pixel size.
The handy shift+double-click shortcut applies the change on all open documents.
I often wish that it would not change the active tool, and simply change the zoom ratio. Could it be made "spring loaded" Do you agree or not?
Still, it is not very user discoverable, and I think the process can be simplified, without the need to hold down Z.