Add SQL servers / Instances / hosts?

Add SQL servers / Instances / hosts?

Hi There,

i'm a new (still trial) user of SQL DB Manager Plus

I have the following servers / instances.. How do i optimal add them to DB Manager

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Always ON cluster (1 default Instance):
Server 1
Server 2
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Fail-over cluster (2 instances)
Server 3 
Server 4

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Always On Cluster (1 default / 1 extra instance so 2 instances active))
Server 5
Server 6

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Always ON Cluster (1 default instance)
Server 7 
Server 8

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So i have a total of 6 instances, divided over 4 x 2 servers

What do i add, 

instances where the software checks on what servers it is active?

a. Per physical server (8)
b. Per physical server + instance (12)
c. Per instance (6)

i don't know and cannot find it right away. If i need host information also it would be option b i guess.. 

but i need an optimal configuration where i can see failovers, etc...

I hope someone can help me with this..

kind regards, 

Carlo