Pasteboard size in InDesign


so whats up with the pasteboard size in inDesign? I’ve searched the web and the inDesign help, but I can only find out how to cange the vertical size of the pasteboard. I need to change the horizontal size! The “<------->” size…

I know it’s possible, cus I’ve seen documents where it’s bigger. This is getting really annoying!

Please, someone, for the love of [size=1]“i dare not say religious words cus they’ll ban me” [size=2]help me!![/size][/size]