4e4640ae4028b89c3f9a0ab031f44974580f2db9
greg
  Tue Jul 17 17:56:09 2012 -0700
Added info about the define regions button
diff --git src/hg/hgTables/usage.c src/hg/hgTables/usage.c
index 2b3bed9..0adab0d 100644
--- src/hg/hgTables/usage.c
+++ src/hg/hgTables/usage.c
@@ -36,31 +36,35 @@
 "        \n"
 "        <LI><B>table: </B>Selects the SQL table data to use. This list shows \n"
 "        all tables associated with the track specified in the <em>track</em> \n"
 "        list.</LI>\n"
 "        \n"
 "        <LI><B>describe table schema: </B>Displays schema information for the \n"
 "        tables associated with the selected track.</LI>\n"
 "        \n"
 "        <LI><B>region: </B>Restricts the query to a\n"
 "        particular chromosome or region. Select <em>genome</em> to apply the \n"
 "        query to the entire genome or <em>ENCODE</em> to examine only the \n"
 "        ENCODE Pilot regions.\n"
 "        To limit the query to a specific position, type a \n"
 "        chromosome name, e.g. <em>chrX</em>, or a chromosome coordinate \n"
 "        range, such as chrX:100000-200000, or a gene name or other id in \n"
-"        the text box.</LI>\n"
+"        the text box.\n"
+"        You can select multiple genomic regions by clicking the &quot;define regions&quot; \n"
+"        button and entering up to 1,000 regions in a 3- or 4-field <a \n"
+"		 href=\"../FAQ/FAQformat.html#format1\">BED</a> file \n"
+"		 format.</LI>\n"
 "        \n"
 "        <LI><B>lookup:</B> Press this button after typing in a gene name or \n"
 "        other id in the position text box to look up the chromosome position\n"
 "        \n"
 "        <LI><B>identifiers</B> (selected tracks only)<B>: </B>Restricts the \n"
 "        output to table data that match a list of identifiers, for\n"
 "        instance RefSeq accessions for the RefSeq track. If no identifiers \n"
 "        are entered, all table data within the specified region will be \n"
 "        displayed.</LI>\n"
 "        \n"
 "        <LI><B>filter: </B>Restricts the query to only those items that\n"
 "        match certain criteria, e.g. genes with a single exon. Click the \n"
 "        <em>Create</em> button to add a filter, the <em>Edit</em> button to \n"
 "        modify an existing filter, or the <em>Clear</em> button to remove an \n"
 "        existing filter.</LI>\n"