You can manage R80.40 Gateway devices with your Security Management / Multi-Domain Server.
To do so:
For R80.30 Security Management / Multi-Domain Server:
For R80.20 Security Management / Multi-Domain Server:
For R80.10 Security Management / Multi-Domain Server:
Note: If you choose to not upgrade to R80.40 Security Management Server or Multi-Domain Server, the new features will not be supported