Hi,We would recommend using Adobe Campaign's Creative Designer Interface to design your email campaigns within Adobe Campaign Standard. It will help you to design and edit the email messages in the Adobe Campaign Standard's interface. Know more here - Adobe Campaign Help | About email content design...
Hey,You can refer the documentation to map destinations with Adobe Audience Manager here - Map Segments to a Destination. An ideal way would be to use the URL destination method and update a destination. Thanks,Gaurang