Sure, you can use a pantograph. You have to figure out the distance you can comfortably travel and buy a pantograph within that size. Within a nine inch throat you will probably be comfortable traveling about half that distance. You also have to watch when quilting a large quilt, because as the completed quilt is rolled up onto the take up bar inside the throat, you lose throat space, thus you lose traveling distance. There are many websites which sell pantographs. One of my favorites is "quiltscomplete". You can also buy a roll of paper and make your own pantographs, either from original design ideas or by tracing quilting patterns in books. Patterns which have not so obvious rows of quilting generally follow a zig zag path across the quilt. Each zig zag row fits together with the ones before and after it. But to accomplish that within a 4 inch wide path, the quilting is going to have to be carefully planned, or kind of dense. Good luck, have fun, and pm me if you have other questions.