I have the same machine - will check this out -
I have been using stitch #1 lately, as it allows you to reverse sttich -- #37 does not.
I use the 1/4" quilting foot that came with the machine and keep my fabric edge about 1/8" from it to get a scant 1/4" seam. I have tried all the markings, rubber bands, etc and thet just get in my way !