SAP Policies & Schedules & Automated Duplication

We have a policy which contains clients based on the SAP backup type

We aren't defining any of the variables within the utl file, therefore they are being passed by the sap_online_backup script

However, this method doesn't utilize the SLP associated with the parent job, as the child job is spun up as "Application Default Backup". If we change the retention on that schedule, then every single backup will have the same SLP retention defined. 

What's the correct method in ensuring you have all the correct parent and corresponding child schedules set so that SLP is automated? Does this have to be done within' the sap_online_backup script? or will we have to use multiple / custom utl files? 

Thank you.