Lists actions that can be performed when a bookmark in the document being inserted and in the target document have the same name.
Keep bookmarks with the same name providing different internal names to distinguish them.
Append the underscore and a number to the name of the bookmark being inserted if the target document already contains a bookmark with the same name.
Do not create a bookmark if the target document contains a bookmark with the same name as the bookmark being inserted.
Use the BookmarkOptions.ConflictNameResolution property to specify the ConflictNameAction enumeration.