Don't get discouraged. Sometimes you have to sweet talk your machine into cooperating. If you try it and have problems, put the spool in a small jar like baby food size. Put the jar to the right of your machine on the table your machine is sitting on. Scotch tape a safety pin round side up on the side of your machine. Run the thread thru that little hole in the safety pin then into your normal thread path. I have to put finger gauze on the spool of monofilament so it does not unwind by itself. Can also use thread netting.
if you have trouble, go to the library and look for Harriet Hargraves' Heirloom Machine Quilting book. She has an entire chapter on tips for using monofilament.
I either use it in the bobbin or as the top thread, never both at the same time.