Q:

How do I export an existing play framework into Heroku?

I have been reading and following: http://eclipse-plugin.herokuapp.com/
to export my existing play applications to Heroku.
When running heroku create, git push heroku master in my terminal everything works
like a charm and my project is created and I can browse it at: xxx.herokuapp.com.
But when I enter Eclipse the project is not "hooked" to Heroku. E.g I'm not able 
to Push to Upstream 
If I go the other way and import the Heroku project with Eclipse, the project is downloaded and "hookup" to Heruko but then the project is located in my git repo and not workspace.
So my question is:
How do I connect my project that are located in my workspace to Heroku so that it's treated like a Eclipse Heroku app?
EDIT:
There is no share option:

A:

To setup the project so you can do the Git operations from Eclipse, you need to do the following:

Right-click on the project in the Project Explorer and select Team
Select Share Project...
Select Git and then Next
Leave the defaults as they are and select Finish

To upload the app to Heroku, do the following (after your changes are committed to the Git repo):

Right-click on the project in the Project Explorer and select Team
Go to the Remote sub-menu and select Push...
Leave the defaults as they are (the Heroku Remote Git repo should be selected) and select Finish

