A template is a standard work week which you can load at the beginning of a week. This way you don't need to plan everyone each time. The template is the base of your schedule.
In other words, you can save employees with fixed working days and hours. There is no limit to the amount of templates you can make. Therefore you can make different templates for e.g. holiday periods or rotation systems.
More information on how to make a template in this article.
More information on how to load a template in this article.