If you want to include more sophisticated graphics in your models, you can use any picture editing application to create a picture, copy it and paste it into a model window using the 窶弃aste窶 command in the 窶廢dit窶 menu. You can select and move pictures in the same way you select and move nodes.
Alternatively, if you have some graphics stored as a 窶弃ICT窶 file, you can include this in your model file, simply by dragging and dropping the file icon from the 窶廡inder窶 to the DynRisk window where you want the graphics to appear. This will produce a picture object containing the graphics from the file.
Note, however, that this alternative method works only if your version of the MacOS supports 窶彭rag and drop窶 from the 窶廡inder.