Why doesn't the panel3 / view expand across the whole website?

Hello fellow Drupalers,
Hope all are well...
I've come across yet another puzzling situation:
I am developing a website, whose owner wants it to include 2 different blogs / apart from the actual site. After further thinking, I decided to set taxonomy categories and create 2 different views to display content of each blog (which should be different).
I have no problem setting the category (when a new content is posted, if it belongs to one of the blogs, then it will only appear in its respective display, i.e. view/panel).
I was also successful creating the panel and view that I want.
My problem / dilemma is that the view that the panel page that i created has 3 columns, which I was hoping would expand to cover the whole site. Unfortunately, when displaying the page, the 3 columns are all jammed up in the "main" content part of the site (I am using the german newspaper theme using 3 columns).
I went through the panel settings of the page once again and selected "Disable Drupal blocks/regions" hoping that it will now expand across the whole website.
Now the 3 panel columns are squished to the left with a lot of white space on the right hand side.
How can I make the panels/view span across the whole website as if the user has come across a "new" site?
Please advise, I cannot find any answers online...
Thanking you in advance.