Ue4 change material parameter from blueprint

In this tutorial we will set up a simple in-game movie screen by using UE4's Media Player function. Make sure to set the Parameter Name to the same as we've set our material parameter earlier (Colour with a U in my case). Give the parameter a name, such as Color. A few people wanted to know how you can use blueprints to change materials around. But if you look for material, or parameter you might find something you are looking for.