To answer my own question, after experimentation:<div><br></div><div>\index[key]{form::entry}</div><div>with</div><div>\setupregister[index][form][textstyle=\hskip1em]</div><div><br></div><div><br></div><div>A.<br><br><div class="gmail_quote">
On Sun, Mar 18, 2012 at 12:38 PM, Alan Bowen <span dir="ltr">&lt;<a href="mailto:bowenalan03@gmail.com">bowenalan03@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<span style="border-collapse:collapse;font-family:arial,sans-serif;font-size:13px"><div>Sorry: My effort escaped without a subject line.</div><div><br></div><div><span style="border-collapse:collapse;font-family:arial,sans-serif;font-size:13px"><br>


</span></div>In placing the heads and subheads of indices, \index defaults to<div><br></div><div>Head    locator</div><div>Head</div><div>    subhead    locator</div><div><br></div><div>I need to get the subhead without repeating the Head, as in</div>


<div><div><div>Head    locator</div><div>    subhead    locator<br></div></div></div><div><br></div><div>How can I do this? Is there some documentation on this that I can read? <span class="HOEnZb"><font color="#888888"><span><br>
</span></font></span></div><span class="HOEnZb"><font color="#888888"><span><font><div>
<br></div><div>Alan</div><div><br></div></font></span></font></span></span><font color="#888888"></font>
</blockquote></div><br></div>