How to delete media from an active playlist

This will automatically update the broadcast on all screens that are utilising this playlist. Publishing will take seconds as there is no new media uploads by end devices but just deletion of the existing media from rotation.
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The screens need to be online for any changes to the playlist to take effect.

How to delete media from non-active playlist (in case you do not want to use this playlist onto your screens) and skip publishing to the screens.