App Inventor dificuldade em programar uma sequencia

Estou tendo dificuldade em programar uma apresentação de uma sequencia de dados de uma lista na sequencia a cada click do botão. Consigo apenas de forma aleatória, porém sequencial não estou conseguindo. Se alguém puder me ajudar eu agradeço. Obrigado.

The following might help.

List Blocks On App Inventor
List Sorting On App Inventor
Shuffle Lists & Unique Random Numbers

Here are some resources to help you learn to use the AI2 tools. A very good way to learn App Inventor is to read the free Inventor’s Manual here in the AI2 free online eBook http://www.appinventor.org/book2 … the links are at the bottom of the Web page. The book ‘teaches’ users how to program with AI2 blocks.

There is a free programming course here http://www.appinventor.org/content/CourseInABox/Intro and the aia files for the projects in the book are here: http://www.appinventor.org/bookFiles

How to do a lot of basic things with App Inventor are described here: http://www.appinventor.org/content/howDoYou/eventHandling .

Also look here http://kio4.com/appinventor/index.htm and here http://www.imagnity.com/tutorial-index/ for more tutorials.

Regards,
Steve