Instantly Open Function Box Home › Forums › Keyboard Tricks › Instantly Open Function Box This topic has 0 replies, 1 voice, and was last updated 8 years, 3 months ago by Neil Parsont. Viewing 0 reply threads Author Posts January 22, 2016 at 6:16 PM #969 Neil ParsontKeymaster Keyboard Trick: Instantly Open Function Box Directions: While entering a function, hold shift and press F3 to instantly open the function box. Author Posts Viewing 0 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In