You can create templates for tasks, issues and other entities in "Templates and processes" section of project settings. These templates can be used for fast creation of tasks or issues with predefined set of attributes. For example, it can be a predefined description, binding to deadlines (sprints), priority, estimation, or assignee.
A task or issue template can be bound to the schedule. This allows to create tasks or issues automatically on a periodical basis. For example, these can be periodical management tasks