Remote CDR?

I’m looking to upgrade an old FreePBX 12.
Doing a fresh install of FreePBX 15 onto new hardware, while old system keeps working.
Can’t see how to include the Remote CDR settings, as described on this page.
Please, is there some guidance to get this working in version 15 ?
TIA’s for any tips or clues.

there are settings in 'advanced settings ’ that enables a properly enabled external odbc server to consume cdr/cel records.

Got that. So many thanks.
I had forgotten to flip the switch on “Display Readonly Settings”.