Project Editor - Workflow: File menu
When you click on the 
icon by each file, you will see a menu which allows you to perform a number of actions.
There are two separate sets of options available depending on the way you access target files:
file menu options for a specific target language:
File menu in Project Editor's Workflow for a specific target language
file menu options for numerous target languages
File menu in Project Editor's Workflow for numerous target languages