Invert variable check

app/src/main/res/layout/activity_manage_trigger_check_variable.xml

@@ -62,6 +62,13 @@
 
         </TableLayout>
 
+        <CheckBox
+            android:id="@+id/chkTriggerVariableDirection"
+            android:layout_marginTop="@dimen/default_margin"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:text="@string/matches" />
+
         <TextView
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"