codeigniter 2.2 / twitter library need

[eluser]mstdmstd[/eluser]
Trying to watch how these examples works app authorize page is opened and I see next message :

This application will be able to:

• Read Tweets from your timeline.
• See who you follow.

This application will not be able to:

• Follow new people.
• Update your profile.
• Post Tweets for you.
• Access your direct messages.
• See your Twitter password.

Are these the only options my app can do ?
How can I to make twitter make all operations from the second list?
setting my app I did not see any more options...