If you want to delete all files, posters or playlists listed under your content menu, please follow the steps:

Step 1:
On the top menu, go to Content.

Step 2:
Choose between the Files, Posters, Playlists tabs

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Step 3:
Once you have the files you want to remove, please press “Delete all”

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Step 4:
A confirmation dialogue box will come up. Please confirm your action.