Hotbar

Now that you have the tools needed for Alchemy, you must create your tradeskill hotbar to use when you practice Alchemy.

Source: wiktionary

The reason to do this is that if you set up a single macro on one hotbar button to use multiple abilities, you won't be able to see when they refresh unless they are visible on the screen — placing them on another hotbar will let you press them individually as they refresh, or simply push your batch macro again.

Source: wiktionary

To activate a hotbar command, use Point-and-Shoot techniques. You can place any valid command that could be manually entered on the Command line.

Source: wiktionary

At the very bottom of the screen are nine grey boxes. These represent your hotbar slots! Pressing the keyboard keys that are bound to those hotbar slots lets you switch between items quickly once you assign objects to the slots.

Source: wiktionary