Additional custom fields in map dict with static values.

Hello.

Dovector version 2.2.27.

How can I add custom fields in the map for the last_login. For example:

map { pattern = shared/last_login/imap/$user/$client_ip table = users_last_login value_field = last_login_imap_int value_type = string fields { userid = $user last_login_client_ip_imap = $client_ip custom_field_name = some_static_value } }