wget https://github.com/davbizz/icingaweb2-module-virtualgroups/archive/latest.tar.gz -O icingaweb2-module-virtualgroups-latest.tar.gz
tar -xfv icingaweb2-module-virtualgroups-latest.tar.gz
mv icingaweb2-module-virtualgroups-latest /usr/share/icingaweb2/modules/virtualgroups
Setup:
mkdir ${ICINGAWEB_CONFIGDIR}/modules/virtualgroups/
cp /usr/share/icingaweb2/modules/virtualgroups/doc/config.example.ini ${ICINGAWEB_CONFIGDIR}/modules/virtualgroups/config.ini
Edit:
vim ${ICINGAWEB_CONFIGDIR}/modules/virtualgroups/config.ini