Once you have made all the entries in the Load Cases and Combinations dialog box, you can start the calculation directly. The selected load case is calculated using the button; the button starts the calculation of all load cases and combinations.
You can also start the calculation of the current load case by clicking the button in the toolbar (see the image Calculate Load Case ). Click the button to start the calculation of all load cases and combinations (see the chapter Starting Calculation of the RFEM manual).
If no results of the modal analysis load case are available yet, you can use the button in the Selection of Shapes tab to determine the mode shapes without leaving the "Load Cases and Combinations" dialog box.