I am wondering how to add a button on my custom toolbar to activate a macro and then I also want to be able to click the button again and deactivate the macro.

The specific macro I want to activate and deactivate highlights the entire row and column so you can see it better. I want to be able to turn it on and off easily with a button click.

Is it also possible to add a keyboard shortcut to activate/deactivate it?

thanks,
john