Showing or hiding specific stereotypes and tag definitions on a diagram
1. Specify the Stereotypes you want to show or hide:
a. Right-click the diagram background, and then click View Options.
b. Click the Shown Stereotypes / Tags entry.
c. In the Links Editor dialog, in the Link Items pane, select the Stereotypes that you want to show and click the Link button. Repeat the step for the required number of Stereotypes that you want to show.
d. Click OK.
2. Specify the Tag Definitions you want to show or hide:
a. Right-click the diagram background, and then click View Options.
b. Click the Shown Stereotypes / Tags entry.
c. In the Links Editor dialog, in the Link Items pane, select the Tag Definition that you want to show and click the Link button. Repeat the step for the required number of Tag Definitions that you want to show.
d. Click OK.
* 
As an alternative to using the View Options, you can select and clear Shown Stereotypes and Shown Tag Defs through the Items tab of a diagram's Property Pages.