Application services template with iworkflow issue

I think I see your issue, if you create two clouds with one device in each you will have to also create two L4-l7 services which if you are completing manually may be prone to error. You can of course provision the same Service Template to both clouds and provision both clouds to the same Tenant.

When I mentioned using the REST API, I was referring to using the REST proxy on iWorkflow to push these services not the REST proxy on BIG-IP. This may allow you to push the same L4-L7 Service template to both devices in the same cluster as you can manually select which one to use. Using the iWorkflow REST proxy allows provides for the RBAC controls and central point of administration just as you have experience using the GUI.