To edit a custom dimension standard:
Select File > Document Settings > Document Preferences. From the Document Preferences dialog box, click the Dimensions tab, and then click Custom.
You can also a create custom standard from the Tool bar or Object Info palette. With any one of the dimension tools in the Dims/Notes tool set selected, open the Dim Std list from the Tool bar and select Custom Standards from the list. With an existing dimension selected, open the Dim Std list from the Object Info palette and select Custom Standards from the list.
The Custom Dimensions dialog box opens.
Select the custom standard to edit, and click Edit.
The Custom Dimension dialog box opens.
Edit the settings as described in Creating a Custom Dimension Standard, and click OK.
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