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diff --git a/org.simantics.district.network/src/org/simantics/district/network/techtype/requests/EnableTechTypeItem.java b/org.simantics.district.network/src/org/simantics/district/network/techtype/requests/EnableTechTypeItem.java
new file mode 100644
index 00000000..c202325e
--- /dev/null
+++ b/org.simantics.district.network/src/org/simantics/district/network/techtype/requests/EnableTechTypeItem.java
@@ -0,0 +1,64 @@
+package org.simantics.district.network.techtype.requests;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.simantics.databoard.Bindings;
+import org.simantics.databoard.Datatypes;
+import org.simantics.databoard.binding.Binding;
+import org.simantics.databoard.binding.impl.ArrayListBinding;
+import org.simantics.db.Resource;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.request.WriteRequest;
+import org.simantics.db.common.utils.CommonDBUtils;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.util.Layer0Utils;
+import org.simantics.db.service.UndoRedoSupport;
+import org.simantics.district.network.ontology.DistrictNetworkResource;
+
+/**
+ * Change the enabled/disabled state of a single tech type table record
+ */
+public class EnableTechTypeItem extends WriteRequest {
+	
+	Resource table;
+	int itemIndex;
+	boolean enable;
+
+	public EnableTechTypeItem(Resource table, int itemIndex, boolean enable) {
+		super();
+		this.table = table;
+		this.itemIndex = itemIndex;
+		this.enable = enable;
+	}
+
+	@Override
+	public void perform(WriteGraph graph) throws DatabaseException {
+		DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
+		
+		Binding binding = new ArrayListBinding(Datatypes.INTEGER_ARRAY, Bindings.INTEGER);
+		List<Integer> enabled = graph.getPossibleRelatedValue2(table, DN.TechType_TechTypeTable_HasEnabledItems, binding);
+		if (enabled == null)
+			enabled = Collections.emptyList();
+		
+		if (enable) {
+			if (!enabled.contains(itemIndex)) {
+				enabled = new ArrayList<>(enabled);
+				enabled.add((Integer) itemIndex);
+				graph.getSession().markUndoPoint();
+				graph.claimLiteral(table, DN.TechType_TechTypeTable_HasEnabledItems, enabled, binding);
+				Layer0Utils.addCommentMetadata(graph, "Enable tech type table item " + (itemIndex + 1));
+			}
+		} else {
+			if (enabled.contains(itemIndex)) {
+				enabled = new ArrayList<>(enabled);
+				enabled.remove((Integer) itemIndex);  // note - without the cast, itemIndex is list index, not element value
+				graph.getSession().markUndoPoint();
+				graph.claimLiteral(table, DN.TechType_TechTypeTable_HasEnabledItems, enabled, binding);
+				Layer0Utils.addCommentMetadata(graph, "Disable tech type table item " + (itemIndex + 1));
+			}
+		}
+	}
+
+}