Adding Pages/Sheets like in Excel for better organization of large jobs. I work at a sign company and frequently come across large jobs that I would like to keep organized.

For example let's use a job I am on right now. It is a job for hospital signage. Over 500 signs in total and let's say 15 departments. Some departments have upto 20 signs. While artboards work well in this instance it would be nice if I could have the option to organize the departments with "sheets" instead of individual files. My reasoning behind this is when I have to make global changes, (let's use color for example) it would be easier to have the option to select color on all sheets and change it to a new color.