How to create Multiple Child Requests from a Parent Request?

Dear All,

How can we auto. create three (3) child requests once a Parent request is Raised?

We would like to auto. create those child requests which will be assigned to the specific Templates, Group, Technician and has its own SLA defined and those child requests should also be linked with the parent request.

Use Case : We have a Service Template namely "Request to Onboard/offboard Employee" and the initiator (i.e., Requester from HR) raises the request using this template with a SLA of 3 Business Days were we've already defined through the Business rules.

Please also note that, we've also associated 2 (two) more SLA's to that template (for example 3 Days and 1 Day) under the Workflow section of the Service Template.