I have a Elna 62C (the blue one) that has been in continuous use since 1973. It has done everything from leather belts to silk organza wedding dresses. It does not quilt. I made two quilts on it and purchased a 301. The self adjusting pressure made several things that are involved in quilting difficult.
The stitch width needs to be on 0 and the cam disengaged for a 'regular' zigzag. There are no push/pull controls. My case looks like Janey's, but it's in storage as I have the table with the drop down feature (so you can use the free arm) that fits the machine.
I posted this last night, but it isn't here???????