In vanilla you can completely hide the status of an NPC from the players by setting
Code:
Token (GM)
Player: Show Enemy Health => Off
and
Code:
Combat (GM)
View: Health - Non-ally => Off
With both of these settings set to off the players cannot see if an NPC is healthy, critical or unconscious either in the CT or on the map.
Now, with Combat Enhancer, even with these options set up this way, once an NPC dies the entry in the combat tracker fades, there's a skull on the token on the map, and the token is moved to the bottom layers meaning the players can no longer interact with it. It's very obvious it's dead.
Now, while writing this I thought of a good potential solution, though I have little to no experience with FG extensions so I don't know if it's possible. But I'd love if you could optionally have it stop dealing damage automatically to an NPC once it's at 1 hp.
For example, Dr Doom starts out with 100 hp, fights the party for some time and now has 10 hp left.
Someone fires a fireball at him dealing 24 damage to him. Normally this would make him go unconscious and instantly tell the players he's down. But instead he now has 1 hp left, leaving me time to either narrate how the fireball incinerates him, leaving the players in suspense for a little bit, or, as Matt Mercer would say "How do you want to do this?".
Once either of these things have transpired I can then manually set Dr Dooms hit points to 0, thus triggering the indicators that he's down.
Do you think this would be possible?