Step 1) Open your Ninja Trader 8.0 and click on the "New" menu and select "Market Analyzer" as shown in the below image.
Step 2) Then Right-click in the Market Analyzer window and select "Columns" as shown in the below image.
Step 3) After the "Columns" window will be open then you need to double click on your "Fields" which you want to see in "Available" then it will come in down "Configured" Then Click on "Apply" and "OK" button as shown in the below image.
Step 4) Then again right-click on the Market Analyzer window and click on "Add Instrument" then the instrument list open will be side then Select there "Symbol" which you want to be set in Market Analyzer as shown in the below image.
Step 5) After followed the above process then you will get "Open Interest" data as shown in the below image.