How do I add classical categories in Unity's Dash?

I want to use the classical GNOME categories (Accessories, Education, Games, Office, Sound and Video) in the Dash menu instead of the current Media Apps | Internet Apps | More Apps

Solution 1:

Old school dash

PPA - ppa:shnatsel/unity (How to use PPAs)

Solution 2:

This doesn't change the dash itself, but it does present you with a categorized view of installed applications. You can access it directly by using super+a, or you can just open the dash and tap tab to switch to it -- or click the App lens icon at the bottom of the dash. Anyway, it'll look like this:

Solution 3:

You could try taking a look at the Unity Bliss Lens, which puts applications into category folders in the dash.

Instructions for installation:

1. Download the package from https://launchpad.net/unity-lens-bliss by clicking the green button on the right side of the page.
2. Extract the package into your home folder.

3. Run the following in a terminal:

   cd unity-lens-bliss-0.1.3
   ./configure –prefix=/usr –sysconfdir=/etc
   make
   sudo make install
   

Log out and back in to see it in the Dash.

(Source)