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With complex projects it's difficult for the eye to locate a file in the project/file tree, and when I have to work inside a specific subdir for hours it really sounds a waste of time having all the other directories aroud of no interest around. That's why could be nice a function "Go into" (just like Eclipse) so that right clicking a folder let you enter the directory, hiding all the other upper directories. Then an opposite function "Go up" brings us back.