Set the default length unit used in Collabora office

The default unit is “inch”, which is not a universal unit. Any way to change that as “centimeter”?

I have tried to edit the “MeasureUnit” in file: /opt/collaboraoffice6.2/share/registry/main.xcd in docker CONTAINER,
that is to chage all
<group oor:name="MeasureUnit"><prop oor:name="Metric" oor:type="xs:int" o or:nillable="false"><value>2</value></prop><prop oor:name="NonMetric" oor:type="xs:int" oor:nillable="false"><value>8</value></prop></group>
to
<group oor:name="MeasureUnit"><prop oor:name="Metric" oor:type="xs:int" o or:nillable="false"><value>2</value></prop><prop oor:name="NonMetric" oor:type="xs:int" oor:nillable="false"><value>1</value></prop></group>

“MeasureUnit” from “8” to “1” .

and then restart docker. However the web interface do not changes.