BlackBerry Productivity Tab
The BlackBerry Productivity Tab provides quick access to your upcoming events, new messages, tasks, and contacts. The tab is available on all device screens.
By default, the tab is turned on and and is centered on the right edge of the device screen. If you want to turn off the tab, swipe down from the top of the screen once using two fingers, or twice using one finger. Tap > Display, and then turn off the Productivity Tab switch.