Update records on all integrations linked to a template at one time

We anticipate having 150+ integrations based on a template (with the Rally integration).  In order to add fields to the integrations, we edit the template and those updates/new fields flow to the individual integrations based on the template, however, we have to manually Update Records on each integration (150+) to have the existing data to integrate.  We would like to have functionality that would allow us to Update Records for all integrations based on that template.