Blake_ASUSOk thanks then I understand.
I'm sorry that those "Screenpad Apps" (ScreenPad Calendar, ScreenPad Calculator and ScreenPad Music Player) are all for Screenpad 1.0 only.
For screenpad 2.0, you are able to use all other APPs.
Apps that can be open on the main screen, can be used on Screenpad 2.0.
Like Windows built-in Calendar, Calculator, and Spotify.