Hi @Anonymous
Portal Records Mover Tool from XrmToolBox is migrate only Portal components(entities, records, etc).
But if your concern is to move entities, entity records, workflow and processes from Dynamics 365 one instance to another instance:
You have to create a solution in Dynamics 365 and add all your component(entities, entity records, workflow and processes - except portal components) into that solution. Then export that solution from "Source Environment" and import solution in "Target Environment".