MDL-30045, I noticed that only delete button is available to manage tokens.
I think it would be great if we could add 'edit' button to each tokens. The lack of having edit button means admin required to create new token to fix minor changes (eg: changing validation date for token). The workaround is to change it directly from DB, but this is not recommended.
The following is a message from Jerome through jabber: 'test need to be done with login/token.php, specially when the ip restriction and valid until date got changed (valid to invalid, invalid to valid, and when they got reset to empty in the form)'