- Define > function > response spectrum. Add new function, name = Rs.
- Define > analysis cases. Add new function, new = Rsx Analysis case = Response spectrum. Acceleration U1 Rs 32.2
- Select Rsx
- Add copy
- Name Rsy
- Acceleration U2 Rs 32.2 Do rest of the work for structure analysis
- Display > show deformed shape. Select model and run animation and change the model.