Well, It is necessary to activate livestream feature of Twitter for Mac if you use Twitter to livestream news and events. Now we are going to show you step by step instructions to enable livestream feature of Twitter for Mac. If you want to enable livestream feature of Twitter for Mac then simply follow the steps posted below.
STEP 1. First you have to open Preferences from the Twitter menu.
STEP 2. Now you have to select the checkbox next to “When new tweets arrive: Automatically scroll to top”
STEP 3. Now simply close the Preferences.
That’s it. Now updates will appear automatically in the feed and stream in live. In this way you can set Twitter for Mac to livestream new tweets and scroll to top automatically. [Via