New spells D&D 5e?

[Alduin Starborn]

Is it possible to add new spells in a campaign based on D&D 5e (I see it's possible in D&D 3.5)?
If so, where I can find the documentation detailing how to do that (I searched through the wiki but found nothing)?

[Zacchaeus]

It's not really possible to add new spells to a campaign as such but they can be added to a Player character. Here's how (https://www.fantasygrounds.com/wiki/index.php/5E_Character_Sheet#Create_A_New_Spell).