yast2-storage-ng from systemsmanagement:Agama:Release project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/systemsmanagement:Agama:Release/openSUSE_Tumbleweed/systemsmanagement:Agama:Release.repo zypper refresh zypper install yast2-storage-ng