Is it possible to migrate already created Standard Persona instances to Service Catalog Persona so that they show up under the inventory of the Service Catalog?
Inventory is a different view than the instances page (though they look similar). Right now there is not a way in the UI to associate brownfield (or pre-service catalog) to that inventory page. Also note, the inventory shows only the user’s inventory and not the groups.
It’s essentially just a receipt of things you have personally “ordered”