How can I create bullet lists which are indented to a specified tab position in WP X6? Everything seems to start at the left margin.
Bullet lists are a form of Outline style.
You can add a left indent (or tab) to the bullet's style. Just double click on the [Style] code to bring up the Styles Editor and insert a hard left indent to the left of the other codes you will see in the Styles Editor's Contents pane.
For more on how to do it: http://wptoolbox.com/tips/Outlines.html#ex1
For some other tips and tricks with automatic numbers and bullets: http://wptoolbox.com/tips/AutoNumb.html
You can also change any bullet list style to a multi-level list style by following these steps:
That should make the bullet list behave more as you expect.