PowerPoint 2007 - Text box formatting queestion

Working in PowerPoint 2007 - working in the Slide Master and created a new layout where I inserted a placeholder for text and formatted with bullet and dashes with varying indents for four levels. When i create a new slide based on this layout it works for this text box - but if i copy the text box it does not continue to use the bulleted and indents in the original text box..how can i retain the multi line bullets and indents.
. Text (dot)
- Text (dash)
. Text (dot)
- Text (dash)

I tried to see if i can create a text box with the multiple bulleted lines - but I was only able to change the default for a the first line of the text box - not the additional line and indents.