I am DMing a new 5e DnD game and my player mentioned this when we met to play our first session. I have created a new 1st level Cleric and when I get to the class section I select Cleric and down the page it asks for a Domain.  There is a Custom option and allows me to enter data for a custom domain.  I can save the character and looking at the character sheet I see my new Necromancer domain items.  However I leveled up the character and the Charactermancer does not show my new domain and lists the compendiums I have bought.   Is there a way to use the new domain past the first level?