I agree. I work on a lot of large frameworks having to scroll up and down the sidebar to see open files makes it pretty worthless.
The horizontal tabs are pretty worthless after 7 or 8 files are open.
Make locking it in an option
Another editor even let's you select how much it should take up in the side bar as a percent % -- even better!
It's one of the only things holding me back from using SubLime.
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