User searching shortcut

In channels with a lot of people, I have to go back to find what someone said a while ago, so I use the search bar instead of scrolling through mountains of text.

I really enjoy the ability to search for posts from a user, but I think the ability to press tab and automatically select the first user would be a very nice touch. Other search options (such as searching for a channel, has an image, etc.) all automatically fill in the search bar except for the user search.