When you make design changes to structural members that mesh with beam elements, you do not need to recalculate the existing definitions of beam joints in a Simulation study. The program automatically updates the beam joints when you switch to the Simulation study tab.
In the System Options - General dialog box, select Automatically update beam joints when study is activated.
During the design process, you can change weldment features in the Model tab such as profile, length, beam rotation angle, suppress or unsuppress status, and conversion to solid body.
The program recalculates the beam joint definitions of the updated weldments when you switch to the Simulation study tab.