Create New Sheet Size & Change Preferences

Hello,

My drawing is too big to fit on an A0 sheet, and I do not want to scale it.

  1. How can I create a new sheet size?
  2. I would like to use ANSI standards with metric measurements (I live in Canada). How can I achieve this?

Thank you for your help.
Max.

 

Update : when I change to "owner", I can create I style, but I still can not change the dimensions :