Numbering indent

let’s assume I have written a few paragraphs with their titles.
Is there any possibility to indent each title with automatically incremented numbers (like in Word)?
So far, the only workaround I can find is to write first all paragraphs’ titles, have them numbered, and then write the content of each.
I don’t find it convenient though.

Why not use Word and cut and paste into your email?

Did that. But the incremental is lost in the process and all titles get to be 1. instead of 1, 2, 3.