diff --git a/li.strolch.agent/src/main/java/li/strolch/search/ExpressionsSupport.java b/li.strolch.agent/src/main/java/li/strolch/search/ExpressionsSupport.java
index 7bf3b3d1c..461981505 100644
--- a/li.strolch.agent/src/main/java/li/strolch/search/ExpressionsSupport.java
+++ b/li.strolch.agent/src/main/java/li/strolch/search/ExpressionsSupport.java
@@ -1,5 +1,6 @@
 package li.strolch.search;
 
+import static li.strolch.model.StrolchModelConstants.BAG_PARAMETERS;
 import static li.strolch.model.StrolchModelConstants.BAG_RELATIONS;
 import static li.strolch.runtime.StrolchConstants.*;
 
@@ -99,6 +100,10 @@ public class ExpressionsSupport {
 		return element -> predicate.coerce(eb.getValueCoercer(element)).matches(eb.extract(element));
 	}
 
+	public static <T extends StrolchRootElement> ExpressionBuilder param(String paramId) {
+		return param(BAG_PARAMETERS, paramId);
+	}
+
 	public static <T extends StrolchRootElement> ExpressionBuilder param(String bagId, String paramId) {
 		return new ExpressionBuilder() {
 
diff --git a/li.strolch.agent/src/main/java/li/strolch/search/SearchExpressions.java b/li.strolch.agent/src/main/java/li/strolch/search/SearchExpressions.java
index 6d587cc2e..326a14483 100644
--- a/li.strolch.agent/src/main/java/li/strolch/search/SearchExpressions.java
+++ b/li.strolch.agent/src/main/java/li/strolch/search/SearchExpressions.java
@@ -1,5 +1,7 @@
 package li.strolch.search;
 
+import static li.strolch.model.StrolchModelConstants.BAG_PARAMETERS;
+
 import java.util.function.Supplier;
 
 import li.strolch.model.StrolchRootElement;
@@ -50,6 +52,10 @@ public interface SearchExpressions {
 		return ExpressionsSupport.state(predicate);
 	}
 
+	default ExpressionBuilder param(String paramId) {
+		return ExpressionsSupport.param(BAG_PARAMETERS, paramId);
+	}
+
 	default ExpressionBuilder param(String bagId, String paramId) {
 		return ExpressionsSupport.param(bagId, paramId);
 	}