What I will do is... find a smarters with the layout you want and just copy those particular layout files into the smarters you want to have that same layout.
Files you need to copy over are from layout folder to its corresponding layout folder
./new_dashboard_layout.xml
./new_dashboard_layout_tv.xml
./new_dashboard_layout_without_freetrail.xml
./new_dashboard_layout_without_freetrail_tv.xml
./new_dashboard_layout_without_freetrail_xc106.xml