RStudio OnDemand Application
To launch an instance of the RStudio click the Interactive Apps Selection, then the RStudio Server option.

Once you have selected how many hours/nodes you will need for the RStudio Session, filled in an account, press the Launch button. You should see a Session Status panel like this:

When the RStudio server has started you will see the Status panel change to this:

Clicking the Connect To RStudio will open a new window with a RStudio Web page
When you are done with the RStudio interface return to the Status panel and click the delete button.