Applied Acceleration At Boundary Condition

[LS_SMS]

Folks, I'm using Workbench v2023 to run a Static Structural FEA simulation. I have a simple model and want to apply an acceleration to the model. However, I want the acceleration applied to the boundary condition of the model, instead of the default, which is applying the acceleration to the center of gravity of the model. For example, suppose I was testing a lamp post in a lab on an acceleration test table. I would bolt the base of the lamp post to the test table and turn on the machine. The applied acceleration would go through the lamp post's boundary condition at the base. I want to do something like this in ANSYS, but my understanding is that applied accelerations act through the center of gravity of the model.