oops - sorry - revert my last comment please ;) The units are taken from the custom size units selector (I tripped over my own setup, using different rulers units (default units) and misreading the actual margin sizes).
oops - sorry - revert my last comment please ;) The units are taken from the custom size units selector (I tripped over my own setup, using different rulers units (default units) and misreading the actual margin sizes).