have AutoScale wizard on the Status tab for Fabric so we can automatically pre-populate how many new instances will be created for each profile

e.g. imagine folks have said they need min 2 brokers and 5 ESBS.

They start a fabric; there's nothing available. So they click AutoScale wizard; it pre-populates how many instances to create of each profile...

Autoscale Fabric

Please select how many new instances to create:

profile: broker  new instances: 2  current: 0  min: 2 max: 4    
profile: esb     new instances: 5  current: 0  min: 5: max: 10

letting you edit the number of new instances to be created on each profile (with up/down arrows or letting you type directly). maybe a checkbox allowing you to enable/disable creating different profiles?

Once you've completed the first page saying how many instances of each profile to create, it takes you to the next page of the wizard where you select whether you're going to use Cloud or SSH or child instances etc