Quote Originally Posted by Rongway View Post
/hotbar copy JOB1 BARNUM JOB2 BARNUM
or if controller, /chotbar copy JOB1 BARNUM JOB2 BARNUM

You can even copy one crafting class's bars to the other 7 and it'll work fine. Set up your highest class, then copy it to the others. The eight class-specific versions of each ability will work themselves out, since on crafters they all have the same name.
Replace JOB1/JOB2 with SHARED if the target/source bar is a shared one.