Index: applications/editors/josm/plugins/pt_assistant/src/org/openstreetmap/josm/plugins/pt_assistant/actions/CreatePlatformNodeThroughReplaceAction.java
===================================================================
--- applications/editors/josm/plugins/pt_assistant/src/org/openstreetmap/josm/plugins/pt_assistant/actions/CreatePlatformNodeThroughReplaceAction.java	(revision 34233)
+++ applications/editors/josm/plugins/pt_assistant/src/org/openstreetmap/josm/plugins/pt_assistant/actions/CreatePlatformNodeThroughReplaceAction.java	(revision 34233)
@@ -0,0 +1,183 @@
+// License: GPL. For details, see LICENSE file.
+
+package org.openstreetmap.josm.plugins.pt_assistant.actions;
+
+import static org.openstreetmap.josm.tools.I18n.tr;
+
+import java.awt.MouseInfo;
+import java.awt.Point;
+import java.awt.PointerInfo;
+import java.awt.event.ActionEvent;
+import java.awt.event.KeyEvent;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.openstreetmap.josm.actions.JosmAction;
+import org.openstreetmap.josm.command.ChangeCommand;
+import org.openstreetmap.josm.command.ChangePropertyCommand;
+import org.openstreetmap.josm.command.Command;
+import org.openstreetmap.josm.command.SequenceCommand;
+import org.openstreetmap.josm.data.coor.EastNorth;
+import org.openstreetmap.josm.data.osm.Node;
+import org.openstreetmap.josm.data.osm.OsmPrimitive;
+import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
+import org.openstreetmap.josm.data.osm.Relation;
+import org.openstreetmap.josm.data.osm.RelationMember;
+import org.openstreetmap.josm.data.osm.RelationToChildReference;
+import org.openstreetmap.josm.gui.MainApplication;
+import org.openstreetmap.josm.gui.MapView;
+import org.openstreetmap.josm.gui.datatransfer.OsmTransferHandler;
+import org.openstreetmap.josm.gui.datatransfer.PrimitiveTransferable;
+import org.openstreetmap.josm.gui.datatransfer.data.PrimitiveTransferData;
+import org.openstreetmap.josm.tools.MultiMap;
+import org.openstreetmap.josm.tools.Shortcut;
+
+/**
+ * Creates a platform node where the cursor is present, removes all the tags from the selected node and puts it in the new node.
+ *
+ * @author Biswesh
+ *
+ */
+public class CreatePlatformNodeThroughReplaceAction extends JosmAction {
+
+	private static final String ACTION_NAME = "Shortcut action to Transfer details of stop to platform node";
+	protected final OsmTransferHandler transferHandler;
+
+	/**
+	 * Creates a new PlatformAction
+	 */
+	public CreatePlatformNodeThroughReplaceAction() {
+		super(ACTION_NAME, null, ACTION_NAME,
+				Shortcut.registerShortcut("system:CreatePlatformNodeThroughReplaceAction",
+						tr("Edit: {0}", tr("CreatePlatformNodeThroughReplaceAction")), KeyEvent.VK_G, Shortcut.SHIFT),
+				false);
+		transferHandler = new OsmTransferHandler();
+		MainApplication.registerActionShortcut(this,
+				Shortcut.registerShortcut("system:CreatePlatformNodeThroughReplaceAction",
+						tr("Edit: {0}", tr("CreatePlatformNodeThroughReplaceAction")), KeyEvent.VK_G, Shortcut.SHIFT));
+	}
+
+	@Override
+	public void actionPerformed(ActionEvent e) {
+		Collection<OsmPrimitive> selection = getLayerManager().getEditDataSet().getSelected();
+		Node stopPositionNode = null;
+		Node newNode = null;
+
+		for (OsmPrimitive item : selection) {
+			if (item.getType() == OsmPrimitiveType.NODE) {
+				if (item.hasTag("highway")
+						&& (item.hasTag("highway", "bus_stop") || item.hasTag("public_transport", "stop_position"))) {
+					stopPositionNode = (Node) item;
+				} else if (item.hasTag("railway")
+						&& (item.hasTag("railway", "tram_stop") || item.hasTag("public_transport", "stop_position"))) {
+					stopPositionNode = (Node) item;
+				}
+			}
+		}
+
+		if (stopPositionNode != null && selection.size() == 1) {
+			PrimitiveTransferData data = PrimitiveTransferData.getDataWithReferences(selection);
+			transferHandler.pasteOn(getLayerManager().getEditLayer(), computePastePosition(e),
+					new PrimitiveTransferable(data));
+			Collection<OsmPrimitive> newSelection = getLayerManager().getEditDataSet().getSelected();
+
+			for (OsmPrimitive item : newSelection) {
+				newNode = (Node) item;
+			}
+		}
+
+		if (newNode != null) {
+			modify(newNode, stopPositionNode);
+		}
+
+		// try {
+		// MainApplication.undoRedo.add(new DeleteCommand(stopPositionNode));
+		// } catch (Exception f) {
+		// f.printStackTrace();
+		// }
+
+	}
+
+	protected EastNorth computePastePosition(ActionEvent e) {
+		// default to paste in center of map (pasted via menu or cursor not in MapView)
+		MapView mapView = MainApplication.getMap().mapView;
+		EastNorth mPosition = mapView.getCenter();
+		// We previously checked for modifier to know if the action has been trigerred
+		// via shortcut or via menu
+		// But this does not work if the shortcut is changed to a single key (see #9055)
+		// Observed behaviour: getActionCommand() returns Action.NAME when triggered via
+		// menu, but shortcut text when triggered with it
+		if (e != null && !getValue(NAME).equals(e.getActionCommand())) {
+			final PointerInfo pointerInfo = MouseInfo.getPointerInfo();
+			if (pointerInfo != null) {
+				final Point mp = pointerInfo.getLocation();
+				final Point tl = mapView.getLocationOnScreen();
+				final Point pos = new Point(mp.x - tl.x, mp.y - tl.y);
+				if (mapView.contains(pos)) {
+					mPosition = mapView.getEastNorth(pos.x, pos.y);
+				}
+			}
+		}
+		return mPosition;
+	}
+
+	public void modify(Node newNode, Node stopPositionNode) {
+
+		if (stopPositionNode.hasTag("railway")) {
+			newNode.put("tram", "yes");
+			newNode.put("railway", "tram_stop");
+			newNode.remove("public_transport");
+			newNode.put("public_transport", "platform");
+
+			List<Command> commands = getReplaceGeometryCommand(stopPositionNode, newNode);
+			if (commands.size() > 0) {
+				MainApplication.undoRedo.add(new SequenceCommand(tr("Replace Membership"), commands));
+			}
+
+			HashMap<String, String> tags = new HashMap<>(stopPositionNode.getKeys());
+			tags.replaceAll((key, value) -> null);
+			MainApplication.undoRedo.add(new ChangePropertyCommand(Collections.singleton(stopPositionNode), tags));
+
+		} else if (stopPositionNode.hasTag("highway")) {
+			newNode.put("bus", "yes");
+			newNode.put("highway", "bus_stop");
+			newNode.remove("public_transport");
+			newNode.put("public_transport", "platform");
+
+			List<Command> commands = getReplaceGeometryCommand(stopPositionNode, newNode);
+			if (commands.size() > 0) {
+				MainApplication.undoRedo.add(new SequenceCommand(tr("Replace Membership"), commands));
+			}
+
+			HashMap<String, String> tags = new HashMap<>(stopPositionNode.getKeys());
+			tags.replaceAll((key, value) -> null);
+			MainApplication.undoRedo.add(new ChangePropertyCommand(Collections.singleton(stopPositionNode), tags));
+		}
+
+	}
+
+	static List<Command> getReplaceGeometryCommand(OsmPrimitive firstObject, OsmPrimitive secondObject) {
+		final MultiMap<Relation, RelationToChildReference> byRelation = new MultiMap<>();
+		for (final RelationToChildReference i : RelationToChildReference.getRelationToChildReferences(firstObject)) {
+			byRelation.put(i.getParent(), i);
+		}
+
+		final List<Command> commands = new ArrayList<>();
+		for (final Map.Entry<Relation, Set<RelationToChildReference>> i : byRelation.entrySet()) {
+			final Relation oldRelation = i.getKey();
+			final Relation newRelation = new Relation(oldRelation);
+			for (final RelationToChildReference reference : i.getValue()) {
+				newRelation.setMember(reference.getPosition(), new RelationMember("platform", secondObject));
+			}
+			commands.add(new ChangeCommand(oldRelation, newRelation));
+		}
+
+		return commands;
+	}
+
+}