If you create an application in Performance Point and start creating dimensions/models and you notice Synchronize all dimensions to Staging Area.. is grayed out, you wonder what it is going on.
The problem is that your user is not in the Modeler Role. Once your user is added to the role you will have no problem synchronizing.
I find this to be weird behavior since you just created the application (and app and staging database). I would assume you be in the correct role to synchronize by default, but apparently that is not the case.
This through me for a loop because I was able to open other applications that I created and would have no trouble synchronizing. I have to dig through the PerformancePoint Server Operations Guide.
I do also have SP3 installed.