Two textures on top of each other in single material?

[ClockworkOcean]

How about

[THX2000]

Hi

Thanks in advance !

The problem:

• I have 2 textures:
• 1 will be used as Background
• The other will be used on top of it and it has shadows

I would like to create 1 material that will combine them both and display them like layers in Photoshop ?
Please check images below as well as the material that I have so far.

My Goal (to have the shadows visible) :

Wheels (no BG)

Curent UE4 material setup (BUT NO SHADOWS are shown):

[ClockworkOcean]

Hey, excellent!

[THX2000]

Thanks @ClockworkOcean, your answer gave me the right direction !!! Here is the final graph