I would not run my jobs in DI Studio - I would only use DI Studio to develop jobs.
Deploy your jobs and run them with the generated batch file or from your favorite job scheduling tool.
In DI Studio you can define the parameter for each job and/or you can use the prolog feauture to set macro variables (i.e. read from a SAS table) to define your year. This way you seperate your code and the parameter, and then you don't need to re-deploy your jobs when reading a new year.