I have SonarQube 6.1. When I click on a project entry from the main dashboards projects widget, I get to a project home page where it says "quality gate passed" and where some issues are listed ('Bugs', 'Vulnerabilities', 'Code smells' and 'Duplications').
On the left side, close to the top, below the project name, there is a "home" icon and to the right it says 'Issuses', 'Measures', 'Code' and 'Administration'.
When I tried to get to a project dashboard - similar to the main dashboard, but specific to the project - I found this page http://docs.sonarqube.org/display/SONARQUBE56/Project+Dashboards. It shows in part a project home page that looks very different from my installations projects home pages. Instead of 'Issuses', 'Measures', 'Code' and 'Administration', like in my case, it has 'Technical Debt', 'Coverage' and so on and also 'Dashboards'. I guess thats where I should go looking for a project dashboard. But that menu item is just missing (along with others) from what my SonarQube shows me!
What can I do?
Here's some background info on the why:
Hence my recommendation is basically to stay with your current 5.x version, or upgrade to 6.0 but not beyond, and then wait until mid 2017 and see what new cross project governance features are coming then.