diff --git a/src/PamguardMVC/dataSelector/CompoundDataSelector.java b/src/PamguardMVC/dataSelector/CompoundDataSelector.java
index 67c58d2d..2060e419 100644
--- a/src/PamguardMVC/dataSelector/CompoundDataSelector.java
+++ b/src/PamguardMVC/dataSelector/CompoundDataSelector.java
@@ -108,4 +108,25 @@ public class CompoundDataSelector extends DataSelector {
 		return selectorList;
 	}
 
+	@Override
+	public DataSelector findDataSelector(Class selectorClass) {
+		/**
+		 * Check this, then all in the selector list. Should iterate happily back to 
+		 * a basic data selector as required even if there are multiple Compound ones. 
+		 */
+		if (this.getClass() == selectorClass) {
+			return this;
+		}
+		if (selectorList == null) {
+			return null;
+		}
+		for (DataSelector aSelector : selectorList) {
+			DataSelector subSel = aSelector.findDataSelector(selectorClass);
+			if (subSel != null) {
+				return subSel;
+			}
+		}
+		return null;
+	}
+
 }
diff --git a/src/PamguardMVC/dataSelector/DataSelector.java b/src/PamguardMVC/dataSelector/DataSelector.java
index b033976c..e1573752 100644
--- a/src/PamguardMVC/dataSelector/DataSelector.java
+++ b/src/PamguardMVC/dataSelector/DataSelector.java
@@ -97,6 +97,23 @@ public abstract class DataSelector {
 	 */
 	abstract public DynamicSettingsPane<Boolean> getDialogPaneFX();
 	
+	/**
+	 * Find a data selector within a data selector. This is primarily for use with 
+	 * ComoundDataSelector objects which may encapsulate multiple other selectors, 
+	 * particularly when annotations are in use. but it's needed here so that it 
+	 * can be called on any DataSelector object. 
+	 * @param selectorClass class to data selector to find. 
+	 * @return DataSelector or null if that class of data selector doesn't exist. 
+	 */
+	public DataSelector findDataSelector(Class selectorClass) {
+		if (this.getClass() == selectorClass) {
+			return this;
+		}
+		else {
+			return null;
+		}
+	}
+	
 	/**
 	 * Get a menu item for the data selector that can be easily added
 	 * to any other menu. 
diff --git a/src/clickDetector/BTAmplitudeSelector.java b/src/clickDetector/BTAmplitudeSelector.java
index fac92954..eb7c1b7e 100644
--- a/src/clickDetector/BTAmplitudeSelector.java
+++ b/src/clickDetector/BTAmplitudeSelector.java
@@ -68,7 +68,7 @@ public class BTAmplitudeSelector implements PamDialogPanel {
 		super();
 		this.clickControl = clickControl;
 		this.btDisplay = btDisplay;
-		dataSelector = btDisplay.getDataSelector();
+		dataSelector = btDisplay.getClickDataSelector();
 		clickDataBlock = clickControl.getClickDataBlock();
 		histoPlot = new HistogramDisplay();
 		histoPlot.setGraphicsOverLayer(histoOverLayer = new HistoOverLayer());
diff --git a/src/clickDetector/ClickBTDisplay.java b/src/clickDetector/ClickBTDisplay.java
index ebf0ca07..eaa05353 100644
--- a/src/clickDetector/ClickBTDisplay.java
+++ b/src/clickDetector/ClickBTDisplay.java
@@ -117,6 +117,7 @@ import PamguardMVC.PamDataUnit;
 import PamguardMVC.PamObservable;
 import PamguardMVC.PamObserver;
 import PamguardMVC.dataSelector.DataSelectDialog;
+import PamguardMVC.dataSelector.DataSelector;
 import PamguardMVC.superdet.SuperDetection;
 import clickDetector.ClickClassifiers.ClickIdInformation;
 import clickDetector.ClickClassifiers.ClickIdentifier;
@@ -2244,11 +2245,15 @@ public class ClickBTDisplay extends ClickDisplay implements PamObserver, PamSett
 			if (btDisplayParameters.amplitudeSelect == false) {
 				return;
 			}
+			ClickDataSelector clickDataSelector = getClickDataSelector();
+			if (clickDataSelector == null) {
+				return;
+			}
 			int n = countAmplitudeDeselected();
 			PamDataBlock<ClickDetection> clickData = clickControl.getClickDataBlock();
 			int nAll = clickData.getUnitsCount();
 			String txt = String.format("%d of %d loaded clicks will not be displayed because their amplitude is < %3.1fdB",
-					n, nAll, getDataSelector().getParams().minimumAmplitude);
+					n, nAll, clickDataSelector.getParams().minimumAmplitude);
 			Insets insets = getInsets();
 			int x = insets.left;
 			int y = getHeight()-5;
@@ -2789,7 +2794,7 @@ public class ClickBTDisplay extends ClickDisplay implements PamObserver, PamSett
 
 			BTDisplayParameters newParameters = 
 					ClickDisplayDialog.showDialog(clickControl, 
-							clickControl.getGuiFrame(), btDisplayParameters, getDataSelector().getClickAlarmParameters());
+							clickControl.getGuiFrame(), btDisplayParameters, getClickDataSelector().getClickAlarmParameters());
 			if (newParameters != null){
 				btDisplayParameters = newParameters.clone();
 				if (getVScaleManager() != null) {
@@ -2812,8 +2817,23 @@ public class ClickBTDisplay extends ClickDisplay implements PamObserver, PamSett
 	 * Get a data selector specific to this display. 
 	 * @return click data selector specific to this display. 
 	 */
-	public ClickDataSelector getDataSelector() {
-		return (ClickDataSelector) clickControl.getClickDataBlock().getDataSelector(getUnitName(), false);
+	public DataSelector getDataSelector() {
+		return clickControl.getClickDataBlock().getDataSelector(getUnitName(), false);
+	}
+	
+	/**
+	 * get the click specific data selector which may now be burried in a 
+	 * CompoundDataSelector if annotations have been used. 
+	 * @return ClickDataSelector. 
+	 */
+	public ClickDataSelector getClickDataSelector() {
+		DataSelector baseSel = getDataSelector();
+		if (baseSel == null) {
+			return null;
+		}
+		else {
+			return (ClickDataSelector) baseSel.findDataSelector(ClickDataSelector.class);
+		}
 	}
 
 	class AmplitudeSelector implements ActionListener {
@@ -3403,7 +3423,7 @@ public class ClickBTDisplay extends ClickDisplay implements PamObserver, PamSett
 			else if (btDisplayParameters.colourScheme == BTDisplayParameters.COLOUR_BY_HYDROPHONE) {
 				keyPanel.add(new TextKeyItem("Colour by hydrophone"));
 			}
-			ClickAlarmParameters selectParams = getDataSelector().getParams();
+			ClickAlarmParameters selectParams = getClickDataSelector().getParams();
 //			if (btDisplayParameters.getShowSpecies(0)) {
 			if (selectParams.onlineAutoEvents | selectParams.onlineManualEvents) {
 				keyPanel.add(symbolChooser.getDefaultSymbol(true).makeKeyItem("Unidentified species"));
@@ -3487,7 +3507,7 @@ public class ClickBTDisplay extends ClickDisplay implements PamObserver, PamSett
 		PamDataBlock<ClickDetection> clickData = clickControl.getClickDataBlock();
 		ClickDetection click;
 		int n = 0;
-		double minAmpli = getDataSelector().getParams().minimumAmplitude;
+		double minAmpli = getClickDataSelector().getParams().minimumAmplitude;
 		synchronized (clickData.getSynchLock()) {
 			ListIterator<ClickDetection> clickIterator = clickData.getListIterator(0);
 			while (clickIterator.hasNext()) {
@@ -4151,7 +4171,7 @@ public class ClickBTDisplay extends ClickDisplay implements PamObserver, PamSett
 			amplitudeSelectorLabel.setText("");
 		}
 		else {
-			String txt = String.format("  Amplitude Selector showing clicks > %3.1fdB", getDataSelector().getParams().minimumAmplitude);
+			String txt = String.format("  Amplitude Selector showing clicks > %3.1fdB", getClickDataSelector().getParams().minimumAmplitude);
 			amplitudeSelectorLabel.setText(txt);
 		}
 	}
diff --git a/src/clickDetector/offlineFuncs/OfflineToolbar.java b/src/clickDetector/offlineFuncs/OfflineToolbar.java
index 414bae2b..f7e1e34c 100644
--- a/src/clickDetector/offlineFuncs/OfflineToolbar.java
+++ b/src/clickDetector/offlineFuncs/OfflineToolbar.java
@@ -255,7 +255,7 @@ public class OfflineToolbar {
 			return;
 		}
 		try {
-			ClickDataSelector clickDataSelector = currentBTDisplay.getDataSelector();
+			ClickDataSelector clickDataSelector = currentBTDisplay.getClickDataSelector();
 			ClickAlarmParameters selectParams = clickDataSelector.getParams();
 			BTDisplayParameters btDisplayParameters = currentBTDisplay.getBtDisplayParameters();
 			
@@ -288,7 +288,7 @@ public class OfflineToolbar {
 	}
 
 	private void checkButtons(BTDisplayParameters btDisplayParameters) {
-		ClickDataSelector clickDataSelector = currentBTDisplay.getDataSelector();
+		ClickDataSelector clickDataSelector = currentBTDisplay.getClickDataSelector();
 		ClickAlarmParameters selectParams = clickDataSelector.getParams();
 		showEchoes.setSelected(selectParams.useEchoes);
 		showNonSpecies.setSelected(selectParams.getUseSpecies(0));