Once a package has been imported, you can easily transfer it to another location under the same license by using the Transfer Within License feature in the package menu.
Open the package details page by clicking the package number (or select the 3 dots next to the package number on the package table page)
Click the 3 action dots next to the package number on the details page
Select 'Transfer Within License'
If you want to transfer a package to a location that's in a separate license, please follow the directions here.