show the property mapping sequences by default

Change-Id: I32417ed53e491a66f700e77ae0fff2154fa5441c
Reviewed-on: https://gerrit.libreoffice.org/10073
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>