Hey!
Thank you much for your answer but i am a bit lost.
This is a duplicate of the original “DefaultSpriteMaterial”.The idea if i understood correctly your answer, is to assign every sprite that i want to change its ALPHA with a different Default material from the property matrix that contains the MPC. So i created a new material that has as a “parent” material the duplicate original (DefaultSpriteMaterial).
Where do exactly i add my MPC since this material already has multipliers and the opacity is greyed out.Sorry about this but i just started learning about materials and i am a bit overwhelmed.