Multiple Decals

Hello,

I got a suggesties, maybe someone done it already or it is impossible I dont know.
Im not a programmer so I could be wrong so here we go.

Is it not possible to make instead of receive decals,
receive decals 0, receive decals 1, receive decals 2 in the engine code?

Would be great if this will become available because I kind of need it soon.

Thanks in avance
Gr Nick