Hi Ashona--
Change tracking is not managed by the DCF. It is a characteristic of the session, rather than a document type.
You can control it via ACL, using set changetracking=on, or the user can switch it on and off dynamically from the Tools menu.
If you want it to be turned on by default when users open a document, you could put an ACL file in your custom/editinit folder that includes the set changetracking=on command.
--Clay