[exim] When using Exim filter from .forward, can I get the …

I'm using Exim filter in .forward with logfile set to $home/filter.log.
This logs the timestamp, from and subject.

Is there a way to log what actions are taken, i.e. where were mails
saved or whatever, (and optionally what matched)?

When testing a filter I can get info like:

Logfile /home/terjet/filter.log
Save message to: mail/Lists/linux
Filtering set up at least one significant delivery or other action.
No other deliveries will occur.

I would like to have at least the "Save message to" line in the log, but
cannot see any way to do that.