Follow these steps to clone metadata in the Media Manager.
1: Click the tab labeled ASSETS in the lefthand menu.
2: Find the file you would like the metadata copied onto. Click the three dots, and in the drop-down menu, find the option labeled CLONE META DATA.
3: A pop-up will appear. In the box labeled SEARCH FOR SOURCE ASSET, type in the name of the file you wish to copy the metadata FROM. Click it when it appears.
4: Now you can select which fields you wish to copy. Click the checkboxes to choose between the presented options. Once done, click on CLONE DATA.
5: Now the selected data has been copied onto the asset, as seen below.