How to Multiboxing wow?

Download Keycopy2 from Microsoft Store

make some macro

            /stopcasting 
            /follow [target=focus]

            #showtooltips 
            /cast [target=focustarget,harm][target=target] skillname

            #showtooltips 
            /cast [modifier:alt,target=player] skillname
            /cast [help] skillname; [target=targettarget] skillname

Choose the wow window in keycopy2 and press start