1. When you insert a subproject, a small specific icon distinguishes it from summary tasks that are part of the master project.

2. In the master project, subprojects appear as summary tasks that you can easily arrange in an outline.

3. Click the collapsed sign next to a subproject to expand that subproject’s tasks for viewing.

4. Each subproject represents a different phase or another functional group in the main project.

5. When you insert a subproject into the master project, the two projects are linked and you can view all the information in the subproject from the master project.

6. If you want to edit a subproject, it will be opened in a new window that allows you to edit the subproject and save it. The changes made to the subproject will be automatically updated in the master project.

7. When you update a subproject from the master project, it is updated in its source file as well.

8. If you just must combine files to create a report or print a view of combined-project information, you can also consolidate them temporarily in a view.

Note: On Web and iOS platforms, if you want to edit a subproject, the app will ask you to open the subproject separately to make the desired changes.