To control which properties are displayed on a rollover tooltip
- Click Tools
tab
Customization
panel User
Interface. 
At the command prompt,
enter cui. - In
the Customize User Interface Editor, Customize tab, in the Customizations
In <file name> pane, select
Rollover Tooltips.
- In
the Objects pane, select an object from the Object Type list.
- In
the Properties pane, select the properties you want displayed for
an object type on a rollover tooltip.
If a property is checked, the property is displayed on a rollover tooltip when the cursor hovers over an object of the selected type in the drawing window. Clear the check mark next to a property to remove the property for the selected object type from a rollover tooltip.
- Click Apply.