Use of TextBalloon example (how?)

[MrQnTi]

Hi,

How to use the example TextBalloon http://doc.qt.io/qt-5/qtquick-customitems-painteditem-example.html in my own app?

What i did so far:

• copied the painteditem project folder (Qt\Examples\Qt-5.8\quick\customitems\painteditem) to my projects folder (D:\projects\painteditem)
• changed DESTDIR in .qro to ../Plugins/TextBalloon
  results in D:\projects\Plugins\TextBalloon
• created a new Qt Quick project (D:\projects\myapp)
• copied the QML (textballoons.qml) that uses the TextBalloon class to my application QML
• added engine.addImportPath(app.applicationDirPath() + "/../../Plugins"); to my main (before any view is loaded)
  results in D:\projects\Plugins as app is inside D:\projects\buildconfig\debug\

I keep getting qrc:/main.qml:4 "TextBalloon": no such directory
What am I doing wrong?