I think what was meant:
Wouldn't it be more handy to have normal attack-shortcuts in the shortcuts-bar as we have now. And after pressing such a shortcut. It's added to the queue. This would make the fighting-system as flexible as possible.
Ok. I know people are wanting to add magic attacks in between the normal attacks if you use such a system. But that is another discussion you aren't going to avoid.
I think I've already unswered this question or maybe I don't get the question at all. Anyway I will enlist the way you can possibly use to add the attacks to the action queue:
1. open the attack window, choose the attack and click to queue, OR:
2. click on the appropriate icon on the shortcut bar (you need to have previously set the shortcut by dragging the attack icon in your shortcut bar - just like spells), OR:
3. push a key to queue the attack (you need to have previously set the shortcut and assign a key to it - just like spells).
The normal attack (default attack) is just like any other attack except it's the one used by default if you don't queue any other special attack.
You can queue any number and type of attacks, up to 5 attacks, in the queue, even from different styles: normal attack - side slash (sword) - shield bash (shield) - ...
Whenever you cast a spell the attack queue is interrupted just like it happens right now so you can: cast a spell, queue a couple of special attacks, cast another spell, etc.
I hope this clear the doubt.