SAP PI 7.11 System Copy and Business System names

Hello Experts,

We are in the process of making a system copy of our PI 7.11 Prod Environment for our Performance Test environment. I wanted to check if anyone has any experience with handling Business System names in SLD. From what I've read so far there is no automatic/mass process to change Business System names from Productions corresponding names to lower environment names like Dev. So, for example

My Prod Business Systems are:

XYZECC_Prod

XYZSRM_Prod

XYZBW_Prod

and after doing System Copy, I want them to name which should eventually be updated in Integration Builder.

XYZECC_PST

XYZSRM_PST

XYZBW_PST

Of course, eventually we want to update the underlying Technical Systems and Logical System but, I am assuming taking care of this step would make subsequent steps easy.

Thanks.