diff --git a/classes/Visualizer/Source/Json.php b/classes/Visualizer/Source/Json.php
index f06bd348..2945c49e 100644
--- a/classes/Visualizer/Source/Json.php
+++ b/classes/Visualizer/Source/Json.php
@@ -389,7 +389,9 @@ private function getJSON( $url = null ) {
 			return null;
 		}
 
-		$array  = json_decode( wp_remote_retrieve_body( $response ), true );
+		// this filter can be used to rearrange columns e.g. in candlestick charts
+		// or to add additional data to the root.
+		$array  = apply_filters( 'visualizer_json_massage_data', json_decode( wp_remote_retrieve_body( $response ), true ), $url );
 
 		do_action( 'themeisle_log_event', Visualizer_Plugin::NAME, sprintf( 'JSON array for the endpoint is %s = ', print_r( $array, true ) ), 'debug', __FILE__, __LINE__ );