Now that you have one or more MarketDepth Trader windows open

Right click on the gray area near the bottom of the MarketDepth Trader window to get a popup menu.
Left click on the item labeled "Properties" from the pop up menu.

The properties window will appear and be ready for you to choose some options
Starting from the upper left of the properties window
Left click on the OK button to save these settings

You should now see a much cleaner looking MarketDepth Trader window

Left click on the gray column indicated to highlighten it.
Left click again and hold the mouse button down this time.
Move the column to between the blue and red column

Repeat the above process for the gray column on the left to get the layout shown below.

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