How to add custom quotes as columns in thinkorswim's MarketWatch.

1. Click the MarketWatch tab and choose Quote from the sub-tab row.

2. Right-click on the upper row of the watchlist and choose Customize from the menu (pic below).


3. Add a Custom item to the current set. Click the "drop down menu"(pic below) select the "Custom Quote".


4. Select any one of the "Custom" then click "Add item" as in (pic below).
 

5. Rename the Custom item and click "thinkScript Editor" then empty the textfield.

6. Copy and pasty all the code from the file that I sent to you.

7. Press OK.

To add more than one "Custom Quote", repeat the above steps again.