I am trying to use empty space NEXT to my basic 2-or-3-columns layout for advertising. Where and how should I place the code to do this? Please, note I DO NOT WANT to use my left_col or right_col for this purpose. I want advertising to be completely separate from my website and as such the only space is on the left or right side of my store page.
To see what I want to achieve, please check the attachment.
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