To add or remove applications from the home screen, you just need to press the menu button on the remote
(3 stripes button on the remote)
A menu on the left will appear,
From the menu, select Launcher » Apps
Here you will see your applications.
Some apps are Highlighted and others are Greyed Out.
The highlighted means they are visible on the Home Screen.
The Greyed out means they are hiding from the Home Screen.
To show/hide the application you just need to select which one you desire and press the Ok Button on the remote.