If you wish to add ANY Trustlines (including CANNACOIN of course) you can do so by going to your settings (fig. 4.1a) Select "Wallet & security" (fig. 4.1b), click on "Assets trustlines" (fig. 4.1c). On the next screen you can see your active trustlines (and eventually revoke them). To add a new trustline press the "+" sign (fig. 4.1d)
(fig. 4.1)
In the next screen enter Asset Code and Asset Issuer (fig. 4.1e)
Be very careful when adding a new trustline, always double-check the data you enter and make sure that the data you have actually match the token you want to add
