For files that already exist in the Package IP window, you can copy a file or file group using the Copy To option, which extends the list of available file groups. The list contains the file groups listed within the File Groups page and additional commonly used groups.
If selecting a file group, the Copy To option copies the child files under the file group to the specified destination group. In the File Groups page, select a file or file group, right-click and click Copy To and click the destination file group from the list in the extension menu.