Before you tag page items, create (or load) tags to identify each content type or item in your document. You can create tags from scratch or load them from another source, such as an InDesign document, InCopy document, or DTD file. Use any of the following methods to create or load XML tags for your document:
Create a tag with the New Tag command.
Load tags from an XML file or another document.
Import a DTD file.
Import tags (and content) using the Import XML command.
You can load tags from an XML file, an InDesign document, or an InCopy document.