kind of Material paren,t -> child ?

Hi all,

Say i have 1000 actors (MyActor1, MyActor2, …, MyActor999, MyActor1000) in my scene and i’d like to assign Material A to them. Say i want MyActor13 and MyActor478 to have a different material A tiling. Is It possible without creating 1000 different materials ?

If so, how to do so please ?