[Q] Need help on Aroma Installer.

Hi guys.
I need some help on Aroma Installer and how to configure it.

I know up to how to add the Aroma Installer, and choose it's theme.
But, I want to learn a bit more about how to add options.

e.g Select Launcher
Select Music Player
Select Theme.

etc.
How can options be added to the Aroma Installer?