1 -> 1.1 -> 1.1.1... ordered list format

[aabbccddeeffggj]

Issues

• [X] I have checked existing issues and there are no existing ones with the same request.

Feature description

Ordered list that works in the following way:

1 text0 1.1 text1 1.2 text2 1.2.1 text3 1.2.2 text4 1.2.3 text5 2 text6 2.1 text7 ...

Help

No

Implementation help

No response