You can control the group's annotations that are displayed in the viewport. The Show function can be used to highlight the annotations and their references belonging to selected groups, but also to remove from display all annos other than those selected.
To show the annotations of a specific group,
1. Click Insert and then, in the Group group, click Show. The Show Group dialog box opens.
Alternatively, click 3D Documentation, and then, in the Display group, click the arrow next to Show. Click Group.
2. Select the group to show from the browser. Creo Elements/Direct Modeling highlights the annotations that belong to the selected group. You can also click All Groups to show all annotations belonging to all groups.
3. Optionally, change the highlight color for the annotations (yellow by default) by clicking Color and selecting a color in the Color Selector.
4. Manage the display of annotations as follows:
◦ Click Show to display the annotations belonging to the selected group. This option has no effect when all annotations are already showing.
◦ Click Hide to remove from display the annotations belonging to the selected group.
◦ Click Show only to display only the selected group's annotations in the viewport. All other annotations are hidden. This option is unavailable when All Groups is selected because it is redundant.
5. To navigate between different annotations of the selected group during a Show session, click Next anno and Prev anno. The annotations are displayed and highlighted in turn.
6. Click to complete the Show session.
The annotation Show settings are retained after you have finished. Note that the show information is only for display purposes, it is not saved with the model.
Show. The Show Group dialog box opens.
Show. Click 
to complete the Show session.