Link to containing parent for media and blocks when not used. Blogg post: https://devblog.gosso.se/?p=1291

module.config

<?xml version="1.0" encoding="utf-8"?>
<module>
    <!--clientResources>
        <add name="epi-cms.widgets.base" path="Styles/Styles.css" resourceType="Style"/>
    </clientResources-->
    <dojo>
        <!-- Add a mapping from site to ~/ClientResources/Scripts to the dojo loader configuration -->
        <paths>
            <add name="clientscripts" path="Scripts" />
        </paths>
    </dojo>
  <clientModule initializer="clientscripts.parentcontainer">
    <moduleDependencies>
      <add dependency="CMS" type="RunAfter" />
    </moduleDependencies>
  </clientModule>
  <assemblies>
    <add assembly="*YourSiteAssemblyName*" />
  </assemblies>
</module>

parentcontainer.js

define(["dojo/_base/declare", "dojo/when",
    "dojo/_base/lang", "epi/shell/_ContextMixin", "epi/dependency", "dojo/topic"],
    function (declare, when, lang, _ContextMixin, dependency, topic) {
        return declare([_ContextMixin],
            {
                initialize: function () {
                    topic.subscribe("/epi/shell/action/changeview/updatestate", lang.hitch(this, "_viewchanged"));
                    this.inherited(arguments);
                },
                _viewchanged: function (data) {
                    var contextService = dependency.resolve("epi.shell.ContextService");
                    //hack - using different loadtime becaus it loads different depending where you open from
                    loadtime = (data.viewName === "onpageedit") ? 1800 : 900;
                    this._contextChanged2(contextService.currentContext, loadtime);
                },
                _contextChanged2: function (newContext, loadtime) {
                    if (!newContext) {
                        return;
                    }
                    loadtime = loadtime > 100 ? loadtime : 700;
                    //only activate on media and block, think i found a combination
                    var activate = (newContext.capabilities.deleteLanguageBranch && newContext.capabilities.versionable/*Media*/ && !newContext.capabilities.canconfigureapproval) || newContext.capabilities.isBlock;
                    if (activate) {
                        var that = this;
                        setTimeout(
                            function () {
                                //hack to put it under the Type label (there is no pluginarea defined for this area)
                                var label = document.body.querySelectorAll("[data-dojo-attach-point='typeNode']");
                                if (label.length > 0 && !document.getElementById("parentBreadcrumbsTitle")) {
                                    var span = label[0];
                                    var li = document.createElement('li');
                                    li.className = "epi-form-container__section__row";
                                    li.innerHTML = '<label id="parentBreadcrumbsTitle"></label><span data-dojo-attach-point="languagesNode" class="epi-previewableTextBox-text dijitInline"><span id="parentBreadcrumb" class="epi-previewableTextBox-link epi-functionLink">' + newContext.parentLink + "</span></span>";
                                    //this could be changed in future version, not so good
                                    span.parentNode.parentNode.parentNode.parentNode.insertBefore(li, span.parentNode.parentNode.parentNode.nextSibling);
                                    var registry = dependency.resolve("epi.storeregistry"),
                                        store = registry.get("epi.cms.contentdata"),
                                        query = store.query({
                                            id: newContext.parentLink
                                        });

                                    query.then(function (data) {
                                        if (data.capabilities.isContentFolder) {
                                            document.getElementById("parentBreadcrumbsTitle").innerHTML = data.contentTypeName;
                                            var parentid = data.ownerContentLink;
                                            parentid = parentid ? parentid : data.contentLink;
                                            document.getElementById("parentBreadcrumb").innerHTML = '<a href="#context=epi.cms.contentdata:///' + parentid + '">' + data.name + '</a>';
                                        }
                                    });
                                }
                            }, loadtime);
                    }
                }
          });
    });