David Oster, a Mac software engineer who works at Google, has published details of a cool hidden feature in Google Notifier.

In a note on the official Google Mac blog, Oster informs us of a hidden command that will list all your mails and calendar events in single menus, without any 'View More' sub-menus.

"Pull down the Notifier menu (either Calendar or Gmail), hold down Command and Option, and click Preferences on the menu. You'll see a hidden settings editor. Enter MaxMessagesOnMainMenu in the Key field (upper and lower case must be entered as shown) and 20 in the Value field, then click Set. Quit Notifier and start it up again."

The developer also tells users how they can return to the default setting: "If you want to get the sub-menus back, get the hidden settings editor back again, enter MaxMessagesOnMainMenu for the Key, and 4 for the Value, then click Set. Quit Notifier and start it again, and your sub-menus will be back, good as new."

Oster wrote Google Notifier as an application that lets Gmail users know when they have new mail in their inbox and warns them of upcoming scheduled calendar events.

This information appears as a drop-down item in the Mac's Menu bar and is heralded by a user's alert sound.