I came across a little issue. I was not able to find the import project into enterprise function.
Apparently the Beta and RC MS Project Professional Version have different ways to control the import wizard.
So irrespectively of what version you are running, you may want to include this command into your ribbon. So how do you do that?
Below is a little instruction on how you can control the ribbon and manipulate it with new commands.
This example is based on using the import wizard, which is required if you want to import an existing project to Project Server, but you can essentially do this for all command.
8. On the very right you will now see the import project to enterprise icon.
You can do this with all ribbon tabs :) Enjoy playing.