To setup the list of tasks, go to Settings > Company Settings > Task Types. Click the ADD button to add a new task type.
Enter in the task name in the Name field (this is what your users will select).
Enter a description of the task.
If the task has a rate associated with it, enter in the rate amount.
Choose is the task is payable or not. (Example - sick days may not result in being paid)
Choose is the task is billable or not. (This is default any time entry to billable when task is selected)
Choose the status. (This enables the task to be displayed to the users or not)