RAR connections and background job setup

Hi,

I am considering connecting my SAP DEV environment to my PRD RAR instance for role testing purposes.

I am wondering is it normal setup to connect SAP DEV systems to PRD RAR?

Also I dont want to run background jobs against SAP DEV (as users have board access) and only want to run these against certain SAP production systems. However there doesn't seem to be a way to specify multiple systems in the background jobs. It is either one system or all. Can anybody advise on best practice in this area?

Thanks,