<!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<para>
To move a highlighted region, use 
<keycombo action='simul'>
  <keycap>Shift</keycap>
  <mousebutton>Button1</mousebutton>
</keycombo>
and drag the text to the new location.
</para>