Customise Normal style with multi-level bullets

[meileetan]

I would like to customise the "Normal" style with multi-level bulleting, e.g.

Level 1

1. Level 2
   • Level 3

How do i do this in 2007? I could do this in older versions.

If the above can be done, is there a keyboard shortcut to enable switching between the levels? In older versions, I used to just press shift+alt+left or right arrow to go up or down a level.