[DerekM]

Take a look at the "Level Styles" sample document for an example of this. What you want to do is create named style for each row level you want (Tool menu > Styles tab). In that sample document there's ones for Level 1-4.

Once those are made, tap on the 'Whole Document' entry in styles tab and scroll down to where is says "Top-level rows". Set that to be the level 1 style. Now go to the level 1 style details and scroll down to 'Children's style'. Set that to be level 2. Continue that for each row level you need.

So beyond specifying the style of the named style, you can also have it set what the style will be for the following or its children rows.

Is that clear? Let me know if you have anymore questions!