Special Formatting for print quote

[RobinReumers]

I have a pricelist that is divided into category:

1 Audio

1.1 Editing

1.2 Recording

1.2.1 Engineer for Recording

1.2.2 Studio for Recording

…

Now I'm creating a quote where the user can select each sublevel, e.g. he can select 2 different items under 1.2.2 called 1.2.2.7 and 1.2.2.8 (these are examples).

Now I want to create a simpler view (for the printing), I'd like to only show a header (if there is an item selected inside this subcategory):

1.2.2.7 is selected, so I would want to show

1 Audio

1.2 Recording

1.2.2 Studio for Recording

and then the line item.

Would this be easy to do in a layout and how (I have many different categories and subcategories)? Any help or examples are welcome.

Robin