You can replace parts in the structure with other files, including those that are pending copy.
The same file can be copied to multiple locations.
Right-click on a file that you want to replace and select Replace.
On the Select File dialog, locate the new file.
To select Pending data, click the Look In drop-down button and select Pending Data.

Select the file and click Replace.
The main view updates to show the pending file with a status of Replace.