Thanks. That’s what I was missing.
When I was here before, the surfaces were listed under the components on the right of the screen.
To try and clarify my understanding of the use of remote forces, I wanted to start out with gravity acting on the ‘water’ solid (call it ice ) and measure the stress/strain on the joints between the legs and the frame.
Then try to replicate that by applying a remote force to the inside of the tank as substitue for the water and try to achieve the same stress/strain results.
Then remove the tank also and apply the combined force directly or remotely to the pads on the supports and again try and achieve the same results on the joints.