What you need to know first: What are Tabs?
See also: Setting Tabs
Code Used: [ctb]
It removes all Tab settings and returns the tab stops to their default positions.
At the point from which you wish the Tabs you have defined to be removed or reset, usually in order to set new ones.
Enter [ctb] at the point in the document where a reset is needed.
Usually one or more [stb] codes follow after [ctb].