You can also add media files to your project without having them appear in the composition. You do this by importing a file into the Media list, thereby storing media objects you might want to use in the future. When you import this way, the imported media does not appear in the canvas or in the Layers list. However, the media remains available in the Media list.
In the Project pane in Motion, click Media to open the Media list.
Do one of the following:
In the toolbar, click Import, then drag media files from the dialog to the Media list.
From the macOS Finder, drag media files to the Media list in Motion.
With the Media list active, choose File > Import > Media (or press Command-I); then, in the dialog, select a file and click Import.
Control-click in the Media list, choose Import Media from the shortcut menu, then add a file from the dialog.
Note: You can also import files directly to the Media list from any Project pane (Layers list, Media list, or Audio list) by choosing File > Import As > Unused Media, selecting a file to add, then clicking Import.
The resulting media objects are added to the Media list but don’t appear in the canvas, Layers list, or Timeline.