If I copy-paste from ultimate-guitar it is chord-over-lyrics style.
I saw in a post from last year (http://forum.arlomedia.com/index.php/topic,3651.msg15442.html) that the [C] button is supposed to change chords-over-lyrics to chordpro. However this doesn't work for me. All is seems to do is remove brackets from non-chords.
Ultimate Guitar often uses square brackets around headings like "Verse" and "Chorus." So you would need to click the ChordPro Tools button once to remove those, then again to convert the manually positioned chords to ChordPro.