Do you have DesignaKnit (or considering it)? You CAN put it to use with your LK-150 machine (or Brother KX350 or any non-patterning/non-electronic machine).
You can find the cable HERE
Here are the features of DesignaKnit you can use with your machine.
You can find the cable HERE
Here are the features of DesignaKnit you can use with your machine.