The navigation panel on the top-left contains the high level financial categories, and the navigation bar at the top-center contains the sub - pages within each of the high level categories.
The navigation panel on the bottom-left contains the high level financial report categories.
General Settings Pages
The General Settings page is where you set all of the preferences that affect the project broadly.
Add Collaborators & Members
The add or invite member button on the top-right corner of the page.