Hi kars
In T4 author settings, we put only 2 options: User Global settings or T4 author page. This will avoid too many configuration, because, right now you have settings in Global, menu item, etc...
So T4 template settings, if you want to link to author page, just enable this option in Author settings + create menu item for author listing.
In case that you want to have no link / redirect to contact page, just configure in global option.
I hope this makes senses.