Adds a dropdown to select the organization. The dropdown will only be activated for users with CourseCreator permission to specific organizations in Studio.
Use cases:
When FEATURES['ENABLE_CREATOR_GROUP'] = True and the user has CourseCreator permission granted, a dropdown will appear with all specific organizations allowed. In case of all_organizations setting is enabled, all organizations will appear in the dropdown.
In case the user is staff, he can create organizations it will work as before
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