I made something 
It all works now. I first found out it was easy to āhideā the skill so i could move it from slot 1 to 3 for example and the skill icon would disappear when moving it to the next slot. So i got so far a couple of hours ago. But the problem was i could still press key 1 even if the skill was awready moved to slot 3 or 4 and so on. So somehow those slots has stored the info that the skill was in there even after moving it elsewhere. Basicly i had to somehow reset that info that the skill was not there anymore. And because the info was stored on the struct as i found out i had to set this struct like on the video here and change the icon image to the default slot imageā¦
It took me around 4 hours to figure this out 
It doesnāt seem like much but is a lot to me. Ty for the help again and your time i aways value it.
Acctually that the whole skill system now fully works with pressing a key is because you helped me out around 1 year ago on it. And yestarday i rechecked this old post how to assign a key to this action bar slots and started trying againā¦ Because i couldnāt make it back then. And from your post where you point me out how to make this system to work even if it was not conventional even back then. So without your help i wouldnāt have made it and still sit on itā¦ So thx a lot and after 1 year i finally made the skill system working as intendedā¦