You can also use the Doteasy Softaculous App Installer in your cPanel to add scripts and apps to your add-on domain.

For example, if you want to install WordPress on your add-on domain:

1. Login to your Unlimited Hosting account's Member Zone and click Access Site Admin Panel (cPanel).
2. Click on WordPress under the Doteasy Softaculous App Installer section.

3. On the Wordpress screen, click Install Now.

4. On the WordPress installation screen, use the Choose Domain drop-down menu to choose the domain you want to install WordPress, which in this case, select your add-on domain.

5. Fill out the rest of the setup form to complete the installation process.