To enable the feature, first activate Gmail Labs for your account, then enable "Multiple Inboxes" from the list of Labs options (you'll have to scroll down a bit to find it). The term Multiple Inboxes is a bit of a misnomer - you can't actually show messages from other accounts, but that could still come in a future Labs release.
To set up your panes, go to the Gmail Settings menu and select "Multiple Inboxes" (once you've enabled them). From there, you can create up to five different panes. Creating a pane seems to be a little counter-intuitive - you'll need to manually enter the Gmail 'code' of your label (for example, "label:friends" would display a list of messages tagged with the friends label). But the system is also flexible, as it allows you to combine multiple attributes into a single pane (for example, "is:drafts OR is:starred" would show messages that are either drafts or starred).
via : TechCrunch
