So the key to all of this is that the very top level canvas IS the hud msg device.
This was such a mind… confusing process for me.
So just imagine that the canvas in the UI widget editor is being controlled by a canvas which has settings that are set within the hud msg device itself. If you go look at the settings you should start to get what i’m talking about.
IF you have your widget anchor in your hud widget bottom left then set your anchor in your hud msg to custom > bottom left and then try scaling. You should get it working.