1. Click File > Options. The Creo View Options dialog box opens.

2. On the left, click Model. The Model-Main options open.

3. Under Gnomon, select Display model.

4. Click Add. The Add Customized Gnomon dialog box opens.

5. Type a name in the Name box.

6. Click .... The Open dialog box opens.

7. Browse to the model *.ol file and then click Open. The gnomon is created with an automatically-defined axis.

8. To rename the gnomon, select it and then click Rename. The Rename Gnomon dialog box opens.

9. Type a new name and click OK. The gnomon is renamed.

10. Repeat steps 4–7 for each gnomon to define.

11. To delete a gnomon, select it and click Delete.

12. Click OK.