Tatango allows you to create multiple Keywords for one list. Multiple keywords are a great way to track the effectiveness of different advertising channels, in addition to managing and keeping subscribers from different locations separated, but still together in the same list. They're also useful if there's a good chance that your customers will misspell your advertised keyword, as you'll be able to claim all of the misspellings of your advertised keyword.
Instructions
Select the list you wish to create a keyword for by clicking on the list name or the Manage button from your dashboard.
Click Settings option on the right screen then select Mobile Opt-In in the dropdown menu.
Click the "+" circle to the right of your current keyword, which will add another field for you to enter a second keyword. Repeat process if necessary.
When you're finished adding keywords, click the Save Changes button at the bottom of the screen.
Additional Notes
If you're using multiple keywords for a list, you'll most likely be interested in using this data to segment your messages.
Search Keywords
alias, alias keyword, alias keywords