In Microsoft PowerPoint, you can add text into your shapes and text boxes; the text can be positioned in your text box or shape horizontally or vertically and can appear on one line or wrap to ...

This tutorial explains how to convert a Text box to a Dotted frame in PowerPoint. You can remove Text box and convert it to Dotted Frame.

For text to overlap in PowerPoint 2007 it has to be entered into separate text boxes. If you think of each text box as a sticky-note, you can envision how PowerPoint works with objects.