The IUX slot configuration

At a technical level, the IUX slot is an extension panel in the browser subapp. The panel allows you to configure a list of extension views in the workbench - see extensionViews for configuration and properties.

Any view implementing UiFrameworkView could be inserted into the slot. You can create a view for displaying data that would benefit from value context and can switch data whenever the selected item changes. The following is an example view for displaying page titles, with valueContext.observe triggering an update whenever selection changes.

import info.magnolia.ui.contentapp.browser.context.ValueContext;
import info.magnolia.ui.framework.ConfiguredViewDefinition;
import info.magnolia.ui.framework.UiFrameworkView;
import javax.inject.Inject;
import javax.jcr.Node;
import com.machinezoo.noexception.Exceptions;
import com.vaadin.ui.Composite;
import com.vaadin.ui.Label;
 * Complex data view :).
public class DataView extends Composite implements UiFrameworkView {
    public DataView(ValueContext<Node> valueContext) {
        Label pageTitle = new Label();
        valueContext.observe(() -> {
            Node node = valueContext.getSingleOrThrow();
    private static class Definition extends ConfiguredViewDefinition<DataView> {
        public Definition() {

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Magnolia 6.3 beta

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