Side menu shows published pages, need that removed.

Hi!

I’ve created a side menu that I want to have just the products page, and I’ve managed to do that, but once I publish any other pages, they automatically show up on the side menu and I don’t want them to be there, how can I remove it?.

Also on the same menu, I’d like to put that menu on a box, and colour that box a specific colour, is that doable?

Kind Regards,
Marcia