Download the addon pack and follow the instructions outlined in this post.
– OR –
Follow these steps:
- Login to WoW.
- Disable ALL Addons (temporarily).
- Open the Game Menu (click the red question mark).
- Choose the Interface option.
- Select the ActionBars option (left side).
- Uncheck the Bottom Left Bar, Bottom Right Bar and Right Bar checkboxes (right side), and click the OK button. *This will allow you to scroll through ActionBars 1 through 6 using Blizzard's built-in UP and DOWN arrows.
- Close the Game Menu (click the Return to Game button).
- Open Blizzard's built-in Macro Editor (type /macro).
- Click your character's Specific Macros tab (top).
- Click the New button (bottom).
- Name your macro, then click the OK button.
- Copy & Paste any Swap Bar Macro code from this site into the Enter Macro Commands: box.
- Click the Save button.
- Repeat steps 10 - 13 for each macro needed.
- Drag and drop each macro to the appropriate Bar/Button slot as indicated by the macro Author.
- Close the Macro Editor (click the Exit button).
- Test your macros to make sure they work properly.
- Enable addons (if necessary).