Sublime Text has two options regarding its sidebar: Toggle Side Bar and Reveal in Side Bar, in many (mine :P) workflows people want to browse their files tree right on the opened file's folder, which isn't possible with those two options alone.
This plugin aims to give an easier and simple option that allows the developer to use the new command Focus File On Sidebar to open sidebar and move focus right to the opened file's place on project's tree, this way the user can navigate on files tree with keyboard arrows, and use the same command Focus File On Sidebar to close sidebar and fold the unfolded folders, preparing it to be used in the same way again (this is needed because if the folder is already opened the focus goes to "opened files" section on the top of sidebar).
It's hard to explain how this small changing of focus to the sidebar improved my everyday workflow, I no longer use the Reveal in Side Bar command, I'd suggest you to give it a try.
By default the plugin adds the Focus File On Sidebar command to the command pallete (control+shift+P) and adds the shortcut Ctrl+K, Ctrl+F (Windows/Linux) or Cmd+K, Cmd+F (OSX) to be used faster, obviously you can overwrite this options on your Packages/User/Default (YourOS).sublime-keymap file simply by assigning another shortcut to focus_file_on_sidebar command.
If your sidebar is already opened by default the plugin closes it and focus back on your file, some people weren't expecting this behavior, instead they wanted the plugin to focus the current file on sidebar (since you can change the current file while having the sidebar opened). Thinking about this different workflow I've added an option named close_sidebar_if_opened defaulting to true, if you prefer to always have your sidebar opened and that the plugin just reveal and focus different files please add a line with "close_sidebar_if_opened": false to your Packages/User/Preferences.sublime-settings file, like this.
In the same way you can install all the others Sublime plugins, by running a git clone git@github.com:miguelgraz/FocusFileOnSidebar.git on your Packages folder or, if you use Package Control, just by searching the plugin's name and installing from there.
You can always send a pull request, send me an email or create an issue with your doubts/feature request/critics =)
I really hope this could be of any use for you!