How to add a M3U8 channel to a bouquet?

So I've got the URL of Rai 4K and I would like to add it to a custom bouquet to be used by capable 4K clients like ie. my smartphone or my computer.

I tried to do it by using the good old Dreamset Setting Editor for Windows, but whatever I tried I don't get it working.

If I try to playback the URL directly ie. by VLC for Windows it works perfectly.

The data I found on a M3U8 playlist are

#EXTINF:-1,[101] Rai 4K (HbbTV)
#EXTVLCOPT:http-user-agent=HbbTV/1.6.1
https://raievent10-elem-live.akamaized.net/hls/live/619189/raievent10/raievent10/playlist.m3u8

Can someone please help me to achieve this?