Hello there ; To give details programmatically, the program detects element freedoms according to the combinations you define. If you do not enter a union, you need to go to the properties of the elements and create the freedoms according to your moment-transmitting-non-transferring states from the element freedoms section in the menu. In the attached images, you can see which joints have which freedoms in the program, and for other joints, you can see how the element end freedoms are examined in order to control the analysis model.