Creating, renaming, and deleting of tags is ususally done by users that have received permissions to do this. Permissions are set in WebPreferences with ALLOW_TAG_CHANGE and DENY_TAG_CHANGE variables. If both are not defined, user who can edit the WebPreferences can do it.
If creating, renaming, and deleting of tags is done by someone else than you, use the forms on the Create, Rename and Delete pages to automatically add your requests here.