Can we run Unreal engine 5 with dual gpus for more memory like we could unreal engine 4?

Can we run Unreal engine 5 with dual gpus for more memory like we could unreal engine 4? My HLOD generation crashes the editor for lack of memory even though its 24 gb rtx 3090… (i have 2)… So question… 1 … its running on a 4k monitor… so how do i run unreal engine with less resolution… and how can i use dual gpus in unreal engine 5?