Uploading Compound Objects
After you have created your compound objects and added them to the project spreadsheet by using the Add Compound Objects wizard and one of its options, you can upload them to the collection for approval just as you would any other item in the project spreadsheet.
Before you upload a compound object, you can use the project spreadsheet features to enter or edit metadata. You also can right-click the object in the project spreadsheet and open it in a new tab. This enables you to review your compound object, restructure pages, assign permissions, and correct any errors, and so on.
For more information about uploading using the Project Client, see Uploading Items to a Collection.