You can edit an existing revision scheme, including an imported scheme. The standard schemes cannot be modified, but can be copied and then modified to make a new revision scheme.
Details that can be edited are the revision scheme format and comments. The revision scheme format consists of the primary, secondary, and tertiary variables, and the delimiter that separates them. You cannot edit a revision scheme format if it is in use. If you attempt to edit a revision scheme format that is in use, you will receive a message explaining that the revision scheme format is in use. The editing area for revision scheme details is located in the Scheme Details group.
Edit a Revision Scheme
The Scheme Details group is located on the lower portion of the Revision Scheme Definition dialog box. In the Scheme Values table, the Type column lists the delimiter, primary, secondary, or tertiary component of the revision scheme format. The Value column lists the properties of the corresponding Type.
In the Scheme Values table, select the Type, and then select a Value from the list
Add Comments to a Revision Scheme