Priority Inbox has a number of options for customization. You can find most of these by clicking the gear icon in the upper-right corner of Gmail, and then selecting Gmail settings, and selecting the Priority Inbox tab. Here’s an overview of the choices you can make there:
Default inbox
Allows you to choose what you’ll see when you open Gmail. You can have the default view be Priority Inbox, your regular inbox, or whichever view you were on when you were last in Gmail.
Priority Inbox sections
You can customize up to four priority inbox sections; just select the options you’d like. This lets you define what groups of messages that you’d like to show in Priority Inbox.
Filtered mail
If you already use filters to help you identify which messages are most important to you, Priority Inbox will respect your filtering system -- in other words, it will not show messages your filters specify should skip your inbox. If you want, you can have Priority Inbox show messages that would otherwise skip your inbox: just select the option in the Filtered mail section that works for you.
Importance markers
Select Show markers or No markers in the Importance markers section to turn the colored arrows on or off.
Show Priority Inbox
To see Priority Inbox, just select Show Priority Inbox. If you would like to not see Priority Inbox select Do not show Priority Inbox.