(Forgive me for possibly being kind of dumb, I'm relatively new to scripting and can't find an exact tutorial for what I'm looking for online.)
I'm looking for ways to allow a hostile monster NPC (humanoid) to spawn at a specific area when a button is pressed, and for said NPC to not respawn upon being killed until the button is pressed once more (I am also seeking out a way to put a delay on the button so it cannot be pressed for a period of time).