Rather than subsubsection is there a sectionlevel{2}? I am writing a rather large monograph and I need levels as deep as 10 such as: 1.2.3.4.5.6.7.8.9.1: This is a very deep section.
I have set \secnumdepth{10} but how do I use it? Must I write a package of my own? How can I use the \label and \ref capabilities or must I re-implement these in my own package too?
{5}\label and\ref` will work automatically. – David Carlisle Jun 28 '18 at 20:22