I’m getting the “hang of it”. You’ll notice that I “mirrored” the tag. Maybe that was a “faux pas” to have the arrow pointing the other way but I wanted it where it was not hiding anything important.
Also, I never could Flood fill my Raster 1. It just was not showing anything. I had to add a colored paper and then change the color to white. I can not understand why the Flood fill did not work on my bottom Raster. It was highlighted and both colors were white in the materials palette.