Newbie Question - How do I add content to this page? I'm very new to drupal, and I've been put on this project. 

So I wanted to create a custom page to display the privacy conditions, which is just a word file I have to copy (so just plain text).

I created the custom page, used the template they gave me and now I want to add the plain text, however I have no Idea where I can do that. Normally I should be able to do it on this page they told, but I can't figure out why I can't change the Main Content. 



Sorry for this very silly question, but I can't find anything about this on the internet.
Am not clear about your requirement, right now you are trying to display it using a panels. If your requirement is just to show a custom page with custom text.. then just add a basic page as a content and place the text in body field. Then call the page using the given path.