Perform Action Retrospectively

I have a service form which is created from a customer record. We have decided to update the customer record using an action on the servcie form. This action works fine and the recrod is updated when the service form is saved. However i wondered if it is possible to update all the previous records without opening each individual servcie form and resaving it.
I hope this makes sense.


You can add another Action button which should update the child records

Something like

Then you can also combine both the button which updates the top\parent record and this example which updates all the child records.

If this does not do the trick JavaScript can do this.