Notifications on lock screen disabled by default, how to enable?

The notification is not displayed on the lock screen and the LED-indicator does not turn on.

After installing the application on the device, Settings -> Notifications and status bar -> Application notification -> My application - the lock screen and the light indicator are disabled.

After enabled, my notification on lock screen it showed.

How to make the default, after the installation they have been enabled?

Thankful in advance for the help.