The current requirement that upgrades/downgrades only be performed within a given package group is there to ensure that addons and configurable options work correctly when migrating.

However, someone mentioned the use case of moving a VPS from HDD to SSD, which were in separate package groups. They use the Universal Module, and have the addons/configurable options configured exactly the same, so it would otherwise be safe to move.

This plugin would simply grant the ability to move a service from one package to any other package that uses the same module. Since we can't ensure compatibility (even among packages that use the same module, since they could use different module rows, etc.), a plugin is a requirement, with the disclaimer of "at your own risk".

The plugin would need to have its own permissions, would appear under Account Actions in the client profile. It will list all services (including addons) and provide a link to change the pricing, which will take the admin to another page that details the service and gives drop-down options to change the module row and pricing:

• The service (link back to the client profile page, and manage service page)
• The service's current package name
• A select menu of all module rows that use the same module (default to current module row)
• A select menu of all packages that use the selected module row
  • After the user selects a package to migrate to, list all term/pricing options available for the package. If possible, select a term that matches the services current terms by default.

Once the user clicks save, the plugin WOULD ONLY update the services.pricing_id and services.module_row_id.