One of the great benefits of the Multi-Project feature is re-usability. In the other examples in this section we have shown the use of common projects, but you can also pick and choose specific topics from multiple projects. For example, if you have two old projects that might have 2 topics in one that you would like to re-use in your new project and a heading and 10 pages from another project that you would like to re-use, you can just register those projects in your new project and add those specific pages to your project.
Alternatively, you could create a new project that will hold all the commonly used topics and then add them from the other projects using "File | Import | Pages from other Fast-Help Projects". Then use that project as the central resource for sharing common pages.