You should bookmark this page so you can go back to it regularly. While you're there, look through the tabs to see what work is due soon or overdue. Also, there's a handy Gantt chart that puts all your tasks in a timeline.
If you want to reset your mode to the default Shared mode, just click the options you changed in the ribbon and click Reset.
The same section that let you email a report also lets you print, or export the report to Excel.
If you have versioning and check-out enabled in your document library, you can keep track of older versions and who can edit the document.