Possibility to hide sidebar for pages using URL-suffix?

[Lunkster]

Hi.
I like this theme and we're using it for manual and help documentation for a metadata catalogue. In the metadata catalogue we have questionmarks that we link to certain pages and anchors in our jekyll-site. The nav-button and sidebar should for normal users (using the help as stand alone) be visible, be we would like to hide it från the metadata catalogeu since it renders the page in a popup.

Is there a possibility to show the jekyll page, without the sidebar, using a suffix for the URL we using for linking?

Or is it another way we could achieve this?

Cheers, keep up the great work
Henrik