quest helper for missable quest

[virginharvester]

hi, I still learning English, sorry for inconvenient,

I just see this mod :
New Quest - Escaping the Cage
https://www.nexusmods.com/witcher3/mods/3611
and the tool:
radish modding tools
https://www.nexusmods.com/witcher3/mods/3620

turn out, you can make your own quest in The Witcher 3,

 

so I have this idea:
after you have done in white orchard then Vizima and go to hangman tree,
you will read noticeboard in Mulbrydale and gain new quest,
the quest is very simple, a quest marker will appear at the map, at priest "Funeral Pyres" location,
the quest will complete once "Funeral Pyres" started or finished,
no mesh, no graph, no sound, no dialogue, no journal, very simple right?,

can someone make it for me, or better, can someone teach me how do that?
I asking this because: there so many missable in this game,

and if i ask all of them do by yourself alone, i afraid this task is too many

 

additional info: if you like to make this mod, this is the link of the missable quests
https://forums.cdprojektred.com/index.php?threads/missable-side-quests-list-and-guide.54774/#post-2032859

thanks for reading,
have a nice day