Cow milking is a minigame in BDO when you hit left and right mouse buttons for a short time to feel a vessel with a milk in 30 seconds. Bot may help you in this task. Just select cow milking function then start bot. As soon as you are near a cow bot will start minigame automatically and complete it in about 20 seconds.
Cow milking has only two parameters which should not be edited besides if you know how to milk faster: