For lazy people like me I'll post the commands here for later use or scripting:

region put #de
region put #de-bw #de
region put #de-bw-em #de-bw
region put #de-bw-fr #de-bw
region put #de-bw-loe #de-bw
region put #de-bw-muel #de-bw
region put #de-bw-og #de-bw
region put #de-bw-wt #de-bw
region put #suedbaden #de-bw
region put #upper-rhine
region put #europe

region allowf #de
region allowf #de-bw
region allowf #de-bw-em
region allowf #de-bw-fr
region allowf #de-bw-loe
region allowf #de-bw-muel
region allowf #de-bw-og
region allowf #de-bw-wt
region allowf #suedbaden
region allowf #upper-rhine
region allowf #europe

region home de

region save

region