As I promised before, I made a video of how to use a binder foot. Take into account that I am using a vintage binder foot that uses the aid of an attachment foot to be added to my machine. If you purchase a newer binder foot, it may snap right on to your machine. However, I do believe the actual use is about the same.
I hope this little video helped you out. If you have other questions, contact me and I'll try to answer best of my ability.