By the link you may find an info, which reveals what is behind :

Unfortunately the only workaround for the number alignment problem is like that:


 1. Line 1

 2. Line 2

10. Line 10

40. Line 40


Unfortunately the workaround has its drawbacks:   entities slightly shift chapter names in the the main document, and TOC printed with “Courier New” does not always look matching the main document style.

An implementation of a proprietary numbering attribute for

is possible. Please contact support pd4ml com for that. If you are ready to partially fund the implementation – it will speed up the process.