NAS RAID 6 free spare

[Enquiries]

I bought a Qnap X431X $GB Ram. I am seeting my Qnap as per your videos. I have 4 bays incl one hot spare, You in your videos mention you will make a video setting up hot spare. I can not find that video.
Ive watched https://www.youtube.com/watch?v=xnI5rhUdjGA
& https://www.youtube.com/watch?v=_kCS6e1ZoiQ&t=1471s
& https://www.youtube.com/watch?v=Y34jrKeQ1Uw.

Please Help?

Kind Regards
Ormonde