@Lcross295 You can tab to get second/third/fourth/etc level bulleted text as long as the text is in a text or content placeholder (one of the shapes that contains e.g. "Click here to ..." when it's empty). Tabbing doesn't work to change bullet indent level in regular inserted text box shapes. Never has. I don't have a Mac version of PPT handy, but in the Windows version, there are Increase List Level and Decrease List Level buttons in the Paragraph group of the Home tab.
