Unreal, how to attach a specific navigation mesh to an actor?

I add an AI in my game. I want the AI to move to some places where the player pawn cannot arrive. How can I make it?

do i understand this right u want ur AI to have access to more space than ur actual character? maybe setting up collision boxes with a custom collision which ignores the ai but blocks u?

Thanks! But I also want the AI can move over the space too. I mean I use the ‘AI move to’ node, so will the AI find path over the space like the navigation mesh?