Resultant Forces on a body in Simulia Fluid ?

Is it possible to have resultant forces (Lift an Drag) on a body in a fluid flow in Simulia fluid validation? I didn't find the way to do it.

In results menu (Physics results app), you can add force sensors. But when I want to use it in Simulia Fluid , an error message tells i didn't choose NFORC or CTF before simulation.

it would be strange that you can't have resultant forces on a body: it is the main interesting results.

Can you help me?