When viewing a Project's notes and documents, you also have the option to view all of the Timeline and Event notes and documents related to that Project.
Viewing all Project Notes and Docs:
1. Open the PROJECT NOTES & DOCS foldout by clicking on the Project label then click on the blue Notes and Docs button at the top of the Project foldout.
2. In the PROJECT NOTES & DOCS foldout check the box to "Show all Notes and Docs".
Every note and document related to that Project's Timelines and Events will now appear in the foldout.