Creating a reaction load

Select a load case either in the Load Description tree or using the Load Case Selector list in the Standard toolbar.
Select the Force and Moment Units to use for the load.
Specify the magnitude of the forces (Fx, Fy, Fz) and moments (Mx, My, Mz).
Tip: Press the Enter key after each value to lock the value in the field. Use the mouse to move the cursor from field to field, in any order.
Click Add. The load is added to the load case.

Note: Load direction follows right hand rule, so a positive Fy value will create a tensile (or uplift) force at the support location.