How to add Google AdSense at the bottom of the sidebar?

[Brayden]

I want to add Google AdSence at the bottom of the sidebar.

Currenlty, I added Google AdSence at the bottom of page by using the Custom HTML menu in the Confluence administartion (LOOK AND FEEL->Custom HTML). 

In the LOOK AND FEEL, there is "Sidebar, header and footer" menu. At the Sidebar, I can add some text to display the text above the page tree in the sidebar. I want to add Google Adsence at the bottom of the page tree. 

How can I do this? 

When I used the RefinedWiki Theme for another side, I can easily to this. But I am using the Documentation Theme for this site. 

[AnnWorley]

My suggestion is to use a custom page tree in the sidebar and put Adsense beneath it - something like:

{pagetree:root=Page Name|startDepth=3|expandCollapseAll=true}
[<AdSense here>]

Please see the section "Add your own page tree to replace the default page tree..." on Configure the Sidebar.