> To have any hope of helping you you need to tell us what function
the key combination
> fn + f4 performs on your laptop.
> 
> -- 
> Best regards,
>  Brian
>

Thank you very much! This combination de-activates my touchpad. I need
to deactivate it when I have an external mouse and I am writing long
texts because touching it causes jumping on the page while I am
typing. I wanted to automatize this function with some software where
I write long texts...

This combination is effectively probably managed by a software by the
maker of my laptop...

Murat

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