Press the shortcut key o to open the game settings, click the system, find the use of the extended skill bar below, and cancel.

So the quick skills disappear.

Randomly select five skills in the skill arrangement and put them aside.

Left click on the vacancy of Q and drag it to the position of the sixth skill. If successful, the word skill combination will appear in the sixth skill position instead of the sixth stage, so there will be no CD for the A-key skill.

PS: This BUG was fixed on July 2, 20 15, and it can't be used now.