Launchpad as Sequencer?

[DamienAcid303]

So I'm looking to turn my Launchpad into a pure step sequencer, like this one shown in the video I'll provide.
I've found video of people who've done it. But no explanation as to how they go about having done it. How would I go about doing this?

Here's the video I mentioned.

[NTO]

Nucleon did one in FLS http://forum.image-line....