queue_log file does not exist

I am trying to find on vitalpbx 4.5 the queue_log file for monitoring in queuemetrics.
sadly the file does not appear to be generated. I can see the queues_log table being populated instead.
Is there an option to enable the file so I can have QM monitor my Q status?

in case someone else has that problem:
create a custom logger conf

/etc/asterisk/vitalpbx/logger__05-log-to-file-qm.conf

with content

[general]
queue_log_to_file = yes

job done -