1. Open the main menu
2. Click on 'Key Bindings'
This will bring up the Key Bindings interface where you can change the binding for all options and action bars.
There are multiple ways you can change your key bindings:
- Left-Click on the bind that you want to change and then press the key you want to change it to
- Right-Clicking on the bind will clear the bind entirely, a new bind can be put in its spot or can be left blank
- Hovering your mouse over an action bar slot and pressing a key will bind the key to that slot