Bug 306576 Externalization/translation of strings in xmi files
Currently our e4xmi files have various hard-coded English strings that are presented to the user (in particular the "label" attributes). Is there some mechanism already defined for externalization/translation of NLS strings from these xmi files? If not, we need to define one. Creating a new xmi file from scratch for each language won't scale, and won't allow switching languages after the product is installed.
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/ui/advanced/impl/PerspectiveImpl.java
case AdvancedPackageImpl.PERSPECTIVE__ICON_URI:
				setIconURI(ICON_URI_EDEFAULT);
				return;
			case AdvancedPackageImpl.PERSPECTIVE__TOOLTIP:
				setTooltip(TOOLTIP_EDEFAULT);
				return;
			case AdvancedPackageImpl.PERSPECTIVE__CONTEXT:
				setContext(CONTEXT_EDEFAULT);
				return;
			case AdvancedPackageImpl.PERSPECTIVE__VARIABLES:
				getVariables().clear();
				return;
			case AdvancedPackageImpl.PERSPECTIVE__PROPERTIES:
				getProperties().clear();
				return;
			case AdvancedPackageImpl.PERSPECTIVE__WINDOWS:
				getWindows().clear();
				return;
		}
		super.eUnset(featureID);
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case AdvancedPackageImpl.PERSPECTIVE__LABEL: