You can include contents to your projects by making a reference to a supported external content source. The HelpStudio takes the latest content that is referenced from an external source when you preview or build your project. 

The following external sources are currently supported:

• Quip Document: Quip is a simple collaborative document editor that makes it easy for multiple users to work on a document. Quip includes a threaded revision and comment capability that makes it easy to track revisions and discuss document revisions.
• Web Page: Include content from a web page. The whole page can be used, or the content of a specific part of the page.