Daggerheart tools for GMs

So, the PC sheets are great. Is there a way for GM’s to create NPC’s (specifically environments and adversaries)? I can see the ones in my starter compendium, see that I can add stuff to individual sheets, but no button to create new. Do I have to buy the Demiplane Daggerheart core rules?

even with the purchase, homebrew and importing adversaries/environments to R20 are features not yet implemented, as referenced in the staff responses linked below.