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How can I update data in /System/Library/PreferencePanes/DesktopScreenEffectsPref.prefPane ? I download custom video, put it to /Library/Application Support/com.apple.idleassetsd/Customer/4KSDR240FPS added row to /Library/Application Support/com.apple.idleassetsd/Aerial.sqlite added info to /Library/Application Support/com.apple.idleassetsd/Customer/entries.json but new item appears only after system restarting. Can I update data in that preferences?

Hi all! So SMJobBless is deprecated, and I want to my app to do some privileged things, e.g. move file to root user folder with permission dialog. Simple, right? But how can I do that simple thing? Found example with agent, but it does not have root permission to write a file in root's folder. Any help?