To reduce clutter in the browser, you can hide clips from view (regardless of their rating).
When you create multicam clips or synced clips, the source clips are hidden from view by default.
In Final Cut Pro, do one of the following:
Click the Clip Appearance button 
above the browser and select Show Hidden Clips.
Choose View > Browser > Show Hidden Clips (or press Option-Shift-H).
The hidden clips appear in the browser with the hidden clip icon.
Press Option-Shift-H again to hide the clips from view.
In the Final Cut Pro browser, select one or more hidden clips.
Do one of the following:
Choose Mark > Unhide Clips (or press Option-H).
Control-click the selected clips, then choose Unhide Clips.
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