Hi Praveen,
I know the link because i have already set that up.
As it is mentioned in the guide, in you case you need to go for 7 clusters here
because if it is dual track with 5 system like below
Dev - QA - PRD
IMP - TST
then it would be 5 clusters
so in your case create 7 clusters 4 for your maintenance track and 3 for your implementation track
Logical component will be same like earlier
create 1 for maintenance track and
1 logical for implementation track
Regards
Prakhar