I've added my vote.
As a workaround.. you can add your comment or (Tags in this case) after the ip address by adding a comma "," example:
123.456.789.10,MyOffice
321.654.987.01,myhome
You can mix with numbers:
123.456.789.10,My1stOffice
321.654.987.01,2ndhome
Use of multiple tags...