You can show the following things while your mobile is in charging/doc mode.
1. Your Name
2. Charging Percentage
3. Unread SMS count
4. Internet Connectivity Status
5. Missed Call count
6. Next Alarm
You can change your name and put any other text you want.
Also over battery charged notification to save battery from over charging.
There is also an option to show and hide notifications like if you don't want to show Next Alarm or Unread SMS count then you can disable it from settings of My Day Dream App.
How to change configuration of Rich Dreams:
Go to settings -> Display -> DayDream -> My Dreams
There will be an setting icon beside the Rich Dreams app.
Rich Dreams Free
This app has access to :