m_staticText171->SetToolTip(_("On each copper layer, zones are filled by priority order.\nSo when a zone is inside an other zone:\n* If its priority is highter: its outlines are removed from the other layer.\n* If its priority is equal: a DRC error is set."));
<propertyname="tooltip">On each copper layer, zones are filled by priority order.
So when a zone is inside an other zone:
* If its priority is highter: its outlines are removed from the other layer.
* If its priority is equal: a DRC error is set.</property>