You can modify existing analysis models by adding parts and loads to them.

1. In the physical model, select the parts and loads to add.

   To select the objects, you can use Organizer categories, for example.

2. On the Analysis & design tab, click A&D models.
3. In the Analysis & Design Models dialog box:
   1. Select the analysis model to modify.
   2. Click Add selected.

      Tekla Structures adds the selected objects to the selected analysis model.