Twitter application access
Go to settings > general settings > others
Go to dev.twitter.com sign in with your Twitter credentials, next click Register an application
Fill the form, it’s automatically accepted so Twitter guys probably don’t check it all, but still … keep it professional.
One important thing here is to select "Read and Write" on "Default Access type".
Click "Register Application" and you’re done
Now you will need 4 keys to make your app work.
Go to View Your Applications and then click "Edit details" on your newly created app. Scroll down and copy (somewhere) "Consumer Key” and "Consumer Secret"
At bottom option to create "Create Access Token" and copy both: "Access Token (oauth_token)" and "Access Token Secret (oauth_token_secret)"