#### 4.10.28 UnsetBookmark

Syntax: `UnsetBookmark [`n`|`+1`|`-1`|`-`|`*`]`
Abbreviation: `UBM`

unsets either the nth bookmark, the next (+1) or previous (-1) set bookmarks, the automatic (-) bookmark, or all (*) bookmarks, making it as if they had never been set; see SetBookmark. If no option is specified, n is assumed to be zero. While you can unset the automatic bookmark ‘`-`’, it will be reset automatically to the current position whenever a `GotoBookmark` command is issued. Each document's valid bookmark designations are 0 to 9, and the ‘`-`’ automatic bookmark.