EP FLP Extensions

Hello Experts,

I need to throuh a popup, when opening two tiles. I remember the extension posibility of the EP FLP (https://help.sap.com/). But I can not find any functional example or a fully tutorial how to implement this.

What do we have?

Enterprise Portal on NW 7.5 SP04

SAPUI5 1.38.23

What have I done by now?

Deployed this javascript file to the web repository

//Component.js

(function() {
	"use strict",


	jQuery.sap.declare("xxx.flp.extensions");
	jQuery.sap.require("sap.ui.core.Component");

	sap.ui.core.Component.extend("xxx.flp.extensions.Component", {		
		onInit: function() {
			// just for demo - do NOT directly trigger UI actions for productive plug-ins
			// SAPUI5 is available, but DOM might not be ready yet
			if (sap.ui.getCore().isInitialized()) {
				this._sayHello();
			} else {
				sap.ui.getCore().attachInit(this._sayHello.bind(this));
			}
		},
		_sayHello: function() {
		  sap.m.MessageToast.show("Hello World from SAP Fiori launchpad plug-in");
		}
})();
});

Entered this plugin parameters in the FLP-Page

Name of the custom plugin : xxx.flp.extensions.Component

Custom plugin url : com.sap.portal.resourcerepository/repo/wr_xxx/flpExtensions/Component.js

What do I get?

Plugin CustomBootstrapPlugin cannot get registered, because the module mechanism for plugins is not valid anymore. Plugins need to be defined as SAPUI5 components. - sap.ushell.services.PluginManager

My Question?

What did I wrong, anybody else doing right? Any advises?

Alternatives?

Yes I know the alternative to build a page with two iViews. On that send the popup the other opens the app. This page I would replace with the current iView call in the launchpad. But this looks really dirty for me, so I want a better solution for the future.

Thanks and greeting,

Thomas