Book Chapter and Section Numbering

Question

Hi,
I've been through the tutorials and cannot seem to find a solution to my problem. Maybe I'm missing something simple here. Basically, I'm writing a book and want each chapter in a separate document with contiguous section numbering. e.g.
Document 1.
Chapter 1
   Section 1.1
       Section 1.1.1
       Section 1.1.2
            Section 1.1.2.1
   Section 1.2
       Section 1.2.1
       Section 1.2.2
Document 2.
Chapter 2
   Section 2.1
       Section 2.1.1
       Section 2.1.2
            Section 2.1.2.1
   Section 2.2
       Section 2.2.1
       Section 2.2.2
If I define the Chapter as a Section heading with a level 1 hierarchy and each sub-section with level 2, 3, 4, etc hierarchy, the above works fine within each document, but section numbering always stays at 1 in each document and doesn't increment when I make the book i.e all chapters remain at Chapter 1 within each document.
If I use the Chapter text variable, chapter numbering updates, but the section numbering isn't linked to the chapter number e.g. Section 2.1 in document 2 now becomes Section 0.1, since there is now no level 1 Section heading defined.
Please help,
Thanks.

Answer 1

Hello Eugene,
Thank you for the response. I actually ended up defining the Chapter as a level 1 section in Bullets and Numbering, but made it a new list called Section which is continuous across documents in the book.
This works great. Everytime a new chapter is added, numbering needs to be updated in the book panel.