The tag dialog (via more …) shows me the list of Gmail labels for emails in my Gmail account. This is great. However, it is a pretty long list. I would like to navigate this list using the mouse scroll wheel. Currently, I have to click the up or down arrow buttons, which are placed at the top and bottom of the list, respectively. Being able to scroll with the mouse wheel would be much more efficient, and intuitive.
I support that request, particularly as the mouse scrolling behaviour is available if you select a message in single line format messge list with the tag column showing.