Remove Completed projects from main project list

Remove Completed projects from main project list

How can I edit my main project list to not show Completed projects? Completed projects are no longer 'Active' so I don't understand why they still show. There is an option to view only Completed projects, so I don't understand why there isn't an option to view all 'open' projects or a way to do a custom view to only show certain projects statuses.