[exim] connection_max_messages vs. batch_max

Total confusion on my part:

Is connection_max_messages and batch_max the same thing but for
different versions of Exim?

I am running Exim version 4.69, and cannot get either of these values to
be set in the exim.conf.

If I input them in the remote_smtp sections then restart and run exim
-bP, no values are output.

I want what that flag offers but can't seem to set it in the exim.conf

Any help much appreciated.