To enable scaling for a blueprint, the developer needs to add scaling actions to the application profile. Scaling actions are scripts that define how to scale out (add more instances) or scale in (remove instances) of an application tier. The developer can also specify the minimum and maximum number of instances allowed for each tier, and the scaling policy (manual or automatic) based on metrics or schedules. The developer can access the application profile from the Blueprint Editor by clicking on the application name and then selecting the Actions tab. References: Nutanix Multicloud Automation Administration (NMCAA) course, Nutanix Certified Professional - Multicloud Automation (NCP-MCA) 6.5 Exam Guide, [Nutanix Calm User Guide]