How to Setup a Signature for a BlackBerry OS BB10

1.  On the home screen, go to the Hub.
2.  On the Hub screen, tap the Action Key (3 dots).
3.  Tap Settings.
4.  Tap Email Accounts.
5.  Select the Email Account.
6.  Set Auto Signature to On.  Input the signature and tap the Back key to save.  Tip:  When finished entering the signature, hide the keyboard by tapping and holding the space key.  Or use two fingers to swipe down from the top of the keyboard.