I have a multi-stage rolling analysis on ABAQUS, and I want to insert the same value of angular velocity and displacement for all upper rollers and lower rollers but with the (-) sign. Hence, how can I insert just one value and tell the software that VR 1 to VR n of top rollers are ,for example, 2 rad/s and the lower rollers are -2 rad/s. Finally, all I want is that ABAQUS or any other software related to ABAQUS read all velocities as one number (with different signs).

Thank you :)