Mathcad Prime 4.0 Default Units

In older versions of Mathcad (i.e. before Prime), I could change the default unit of each type independently, that is, I could set length to inches, force to kips, and mass to kg.

Is there any way to do this in Prime 4.0? I am well aware that I can change the display unit of an individual math region, but I need to be able to change the default display unit because I often work with matrices of mixed units. As such, I cannot change the display unit of such matrices, and I'm stuck with feet and pounds, and I'd really prefer to have inches and pounds.

Thanks,

-Sean