how do i create a cycle of textures in a material?

im trying to create a material that can loop a cycle of images to create like a flipbook effect, im sure ive done this before but i cant remember it or find any tutorials that relate exactly to this situation

thanks guys.

ok that part ive solved, was easier than i remembered.

next problem is i need to display that material in my hud as a widget, how do i target the hud from a blueprint?

dot worry folks, i got it.
ended up using a flipbook sheet, pretty simple really