This article will show you how to order default items.
Important Note:
Agenda Center is the only module that you must be an Owner to Publish.
All changes to the Default Items' order are automatically saved.
Who can use this feature?
System Administrator | Owner
Instructions
Navigate to Modules and on the Content tab, select Agenda Center:

Select the category that you would like to modify:

Select the Default Items tab:

Click and hold the item, then drag and drop it into the desired order:

Note:
All Default Items will be on level one. You can change the level once you begin to build an agenda.