Customise cron job

Question

I would like to repeat the entire flow from the service tasks Fetch,Store S4tXml, Process Individual order json… till the end for multiple Id’s. How can I adapt the above camunda model without messing up the process variables? does multi instance work? for exaple for(var i =0 ; i<n;i++){ Fetch,Store S4tXml, Process Individual order json… }