Here's how you can install Unity Drawers in Ubuntu 14.04. Drawers lets you easily organize related items on the Unity panel.
1. Open a terminal window.
2. Type in the following commands then hit Enter after each.
sudo add-apt-repository ppa:ian-berke/ppa-drawers
sudo apt-get update
sudo apt-get install drawers
According to Noobs Lab:
A utility for organizing related items for easy launching from the Unity launcher by "mini-dashes" or quicklists. You can also create persistent Desktop Widgets that display a directory or links to related items and applications. Drawers creates a launcher for the Unity panel that can contain any combination of files, web links or directories.More at Noobs Lab
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