We would like to add the Kagyar clerical domain to our D&D 5e game. But I can't find it in any of the sourcebooks. So we would like to add it to the compendium so it can be used with Charactermancer when the cleric levels up. We would also like to add some house rule stuff. How would we go about creating this content and adding it to the Charactermancer/compendium? In addition, we have some custom house rules for the character sheet. Does anyone have a good tutorial on modifying the current character sheets in a game? Thanks in advance for the input.