In this Unreal Engine 5.4 tutorial, we explore how to use the Mesh Renderer Array in Niagara! Learn how to switch, cycle, or randomize static meshes sequentially based on spawn loops and particle execution indices to solve a common community question from the Unreal Engine forums. 
https://dev.epicgames.com/community/learning/tutorials/l05o6/mesh-renderer-array-in-unreal-engine-5-4-niagara-tutorial