I have searched the user manuals and can find no information on using F keys and how to cancel a command I have done. macOS 10.8.5

I foolishly followed some advice and used F5 button for something. Now there is a permanent open field on all windows and Excel won't let me input into individual fields.

I don't remember what I did, why I did it, and don't know how to undo it. Thick black line flashes round a field box, or any button.

How can I undo this action?

  • 1
    Is this the same question you posted a few minutes ago here?
    – fsb
    Commented Apr 3, 2018 at 20:42
  • If it is, he should combine them here and delete the one on hold
    – bjbk
    Commented Apr 3, 2018 at 20:45
  • 1
    Don't repost your questions, edit your question to improve it. I have removed the previous question.
    – grg
    Commented Apr 3, 2018 at 21:54
  • Thanks grgside and bjbk - I couldn't find a way to edit it which was acceptable to remove the hold, so asked a different question! Thanks for merging them.
    – user283863
    Commented Apr 4, 2018 at 13:03

2 Answers 2


You appear to have enabled the Accessibility shortcut.

To toggle it back off, option+command+F5

Accessibility settings


As @bjbk indicates correctly, you have accidentally enabled accessibility tools, and need to de-activate them if they are unneeded or obstructive.

You can go up to menu bar at the top of the screen, to the Apple menu, click on the Apple icon at the extreme left of that menu bar, go to System Preferences, Accessibilty, and manually turn it off there, or as @bjbk indicated in their answer, you can use the Shortcut Key to toggle the state, which is now ON to OFF - click on option + command + F5 to accomplish this.

  • 1
    Thankyou - This seems to be my problem, but opt+commnad+F5 is not working and I don't have an Accessibility option in my System Preferences (OS 10.5.8)
    – user283863
    Commented Apr 4, 2018 at 12:58
  • 2
    THANK YOU SO MUCH - I have found a 'voice-over' toggle in the Universal Access Preferences which was on and switched it off. It only needs cmd+F5 on my OS
    – user283863
    Commented Apr 4, 2018 at 13:22

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