Ok I am being a bit of a "dunce" today or maybe every day but I need to ask can someone post a picture of a seam guide? (for singers) I needed one for one of my fw and so I purchased a blue weird shaped piece which I can adjust and place on the machine with a screw holder that I know works, but I saw some posting on Kalamaquilts pics that look like two that are actually in my case holder of each of my fw and one in my 99 are those quilt guides? How do they work and can one be placed on the machine for a 1/4" seam? I told you I was being a dunce. Thanks for your help.