Hi Tamena,
yes, it is possible. You have to change the file theme.php in the plugin editor. But if you want, you can create a new user to me in your admin panel. It is faster if I can change the code to test it. I have done this with other users and there were no problems. You can trust me.
You can send me the information to my email: admin@creabox.es
And tell me where you want the twitter feed exactly.
Regards