Thanks, everyone, for your helpful hints. I did heavily starch the Lighted Christmas Wallhanging and used typ--, uh printer paper as a stabilizer. I hooped the fabric, and made all the adjustments per the instructions, and I watched as many of the videos I could find, but I just couldn't achieve a very nice looking eyelet with the Flower Stitch Foot nor the Pfaff Eyelet Plate...probably "operator error".
Pat M, I'm away from my Pfaff right now, but I think #49 is the eyelet stitch. This, too, I tried, but the opening wasn't big enough for the little Christmas light. So I may have to revert to hand buttonhole stitches around each light hole.
Again, thank you all for your help.