Now let's learn how to do it.
1. Displaying notifications in the app group/drawer
Go to menu > preferences. Then you can see the following option.
Check 'Count notifications'. The following dialog will be shown because 'Notification monitor' is not installed on your device.
Press 'OK' and install it. You can manually search it in the Play store.
Select 'Count notifications for' and check the apps to display notifications for. I have checked 'Hangouts' for example.
When you come back to ssLauncher, it will show the following dialog because 'Notification monitor' is not activated.
Press 'Yes' or move to 'System settings' > 'Accessibility'.
Activate 'Notification monitoring service'. Ignore the warning message. I don't retrieve any information from your device. =)
Now finished. Let's send a message.
We can see the counter on the Hangouts icon.
The notification text is shown when using 'List type' of the page.
2. Displaying notifications on a shortcut
First of all, confirm that 'Notification monitor' is installed and activated. (See the 1)
Create a new shortcut to 'Hangouts' on the cover page.
I have selected a style including icon, title and information.
Edit the shortcut and select 'information' > 'text'.
Then check the 'Notification count' (dynamic text).
We can see the count is displayed on the shortcut after applying changes.
When you select a dynamic text, notification text will be displayed by selecting 'Notification message'. This notification is for the target of the shortcut and independent from 'Count notifications for' in preferences.
* 'The latest notification' of dynamic text will displays the "latest" one regardless of the target of the shortcut.
** 'Missed calls', 'Unread SMS' and 'Unread Gmails' in dynamic text are working independently from 'Notification monitor'. Because these dynamic text does not use the service.