The initial delay is the number of seconds before the very first notification is displayed on a page.

To select a fixed number of seconds, uncheck the Random initial delay and select the number of seconds.

To select a random time, check the Random initial delay and select a minimum and maximum time.

Time between notifications

The time between notifications is the number of seconds between one notification closing and another opening.

To select a fixed number of seconds, uncheck the Random interval and select the number of seconds.

To select a random time, check the Random interval and select a minimum and maximum time.

Display for..

This settings is used to select the number of seconds that each notification is displayed for.