F11 wont work

I have the F11 key sending to all screens, but it doesnt work at all, nothing is sent and the only thing it does on current window is cause it to follow the current target.

When first logging in there is an error message, but it seems to print each line over each other so I cant read it. Says something about F11 keybind wont work because using shift-F11 as well. But cant be sure of the exact error message.

I just want F11 sent to all windows. I assume the keybind is used by isboxer internally???

Yes, by the follow macro.

In the top pane in ISBoxer expand Game Helpers and select World of Warcraft. Then in the bottom left pane select the /follow {FTL} wow macro. Its Key Combination is F11, and it reserves all of the modifiers. If you don't want it to use F11, set it to something else. But it must be a key with all modifier combinations unused, don't use any modifiers in the Key Combination (i.e. do not set this to Shift+something because that will break FTL) and I would recommend not using a printable key (one that works in chat or in a password, etc), and it cannot be on the numpad because shift will be used.

Export after changing it, and if you're already in the game you will need to /console reloadui.

Thank you Lax, that worked.