How do I use a material instance with parameters as an image in the HUD?

So I’m working on a HUD with progress bars that are actually images. I know how to use a material instance as the image, but not how to pass parameters into it.

Here’s what I have so far.

Hi I think what you need is to create a dynamic material instance (On construct) so you can set the material parameters. Like Vector, Scalar or Texture Parameter.

Thank you!!