sure. just follow the next procedure:
To upgrade to a paid license, first you'll need to place an order for the license plan that better meets your needs. You can review our available license plans at
http://www.centova.com/pages/castpackages/Once you have received your new license, you'll have to install your new license key into your existing Centova Cast installation:
Using a unix based text editor such as vi or nano, replace your license key within the license.conf file located at /usr/local/centovacast/etc/license.conf
Delete the current license information by running the following command:
rm- f /usr/local/centovacast/etc/license/license.key
Then just restart Centova Cast:
/etc/init.d/centovacast restart
If you don't get any error messages, then you have successfully switched to your new paid license.