[Josephus Holt]

I've totally forgotten how to do this!!!

[JDHill]

Double-click the material's thumbnail in the Cinema material manager; that should open the plugin's material editor. Then, look right below the material preview image in the editor -- there's a drop-down menu there for choosing which texture you want to show in the viewport.

[Josephus Holt]

Double-click the material's thumbnail in the Cinema material manager; that should open the plugin's material editor. Then, look right below the material preview image in the editor -- there's a drop-down menu there for choosing which texture you want to show in the viewport.

Could there be something really basic that I'm overlooking?

[JDHill]

Yes, the material has broken paths -- note the red/black texture buttons -- so, there are no textures the plugin can show in the viewport. If you want the plugin to be more aggressive about trying to fix up bad paths, see the Maxwell page in your Cinema preferences.