<?xml version="1.0"?> <!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"> <para> Select a region of text by dragging the mouse pointer with the <mousebutton>left</mousebutton> mouse button depressed. Copy the selected text to a new location by placing the mouse pointer at the desired position and pressing the <mousebutton>middle</mousebutton> button. </para>