I am working on my first Gadgeteer module. I have decided to put all gadgeteer related parts into a separate eagle library. I have parts for each socket label. When I made it in part editor I have used tPlace(21) layer since it is going to be printed. Now, when I put it on a board it stays on layer 21 and there is no way to put it on any other layer.
The question is how to design a part that can be put on any layer?