Index: trunk/doc/user/06_feature/asm/index.html
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--- trunk/doc/user/06_feature/asm/index.html	(revision 35153)
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@@ -80,10 +80,15 @@
 in something like "1206,100nF,". The resulting group string is then used for
 grouping and sorting the groups alphabetically.
 
+<h3> Exclude </h3>
+<p>
+If the config node at /plugins/asm1/exclude_query is not empty, the value
+is interpreted as a query expression which is evaluated for each
+subcircuit (being the @ variable in the expression). When the expression
+evaluates to true, the subcircuit is omitted from the build schedule.
+<p>
+This feature can be used to implement DNP (do not populate) or optional builds.
 
 
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-
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