How to upgrade the Opmanager 7 to 8

How to upgrade the Opmanager 7 to 8

Hi,
 
Is it possible to upgrade the Opmananger 7 to 8?
 
Or is it possible to import all the information from Opmanager 7 to 8.
 
We already have some Routers monitoring in Opmananger 7 & i like to import all that to Opmananger 8.
 
Pls help me on this matter.
 
Thanks.
 
Dasuntha

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