Preference to always show parent folder names on tabs - I have structures where the file names are the same but the folders are not. Sublime shows this on the titlebar I know, but I like it right on the tab as well.
The current layout for the screen is kludgy at best. I would like to be able to drag a tab around and the width or height of the window gets split and the tab can be ‘docked’ there. Eclipse does this rather well. This also implies that I can always add a column or row to the window.
There should be a button to synchronize the selection of the file folder structure with the current selected tab. If I click on a tab, the location on the project is revealed.
Lastly an option to place find/replace panes on the top of the window instead of at the bottom.