If the supplied task doesn't suit you it is, of course, possible to create new task in compliance with your needs.
New task can be created via Enhanced user interface only. If you use the Simple interface, switch to Enhanced user interface. Switch to "Tasks" page and right click on tasks list here. Choose "Add new..." from the shortcut menu.
A detailed description of the procedure for the creation of new tasks you will find in the "Description of task pages" chapter.