Once you get the process imported, you need to create an Application and then add the ES process to that application
Launch workbench ES2 and login to your ES2 Server
Create a new application - File New Application, give it a name and click finish
Expand your new Application and you should see /1.0 version
Right click on the 1.0 version and click Import
Choose Process from the Select dialog and click Next
Find your ES process in the Select Process dialog and click Finish.
Now your ES process should be in your ES2 application