[FEATURE] Know absolute positioning of a paragraph which was drawn in a relative mode

[zgordan-vv]

I want to separate paragraphs with a horizontal line. In order to do this I need one of two things:

1. draw lines in relative mode or
2. insert an empty paragraph (or styled paragraph) in relative mode, know it's absolute position and draw line there

But I didn't found anything that lets me to do one of one of these. So I need a way of knowing absolute positioning of a paragraph (preferably) or a way of drawing lines in relative mode.

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