diff --git a/README b/README
index b39b48dfe919b618d96ae45e6640cd24bee58238..8c3bed688cb3993c93ab4f2b34fbb1d2e0dd4517 100644
--- a/README
+++ b/README
@@ -1,6 +1,6 @@
 Thank you for using CATview - the Colored & Aligned Texts view.
 
-This is version 2.6.2
+This is version 2.6.3
 
 For information about the features and usage of CATview, please visit:
 https://catview.uzi.uni-halle.de
diff --git a/catview.js b/catview.js
index 37a07bd230584cec03f5b90c9f6bcedb05588447..471c198103d3e0f1e04fccc681212610f292ef9c 100644
--- a/catview.js
+++ b/catview.js
@@ -22,7 +22,7 @@
  SOFTWARE.
 */
 
-// CATview - the Colored & Aligned Texts view - version 2.6.2
+// CATview - the Colored & Aligned Texts view - version 2.6.3
 const CATview = new function() {
   this.debug = false;
 
@@ -31,7 +31,7 @@ const CATview = new function() {
     if(CATview.debug)
       console.log('CATview.initialize');
 
-    CATview.version = '2.6.2';
+    CATview.version = '2.6.3';
 
     // id of the parent container that will include CATview
     CATview.parent_id = 'CATview';
@@ -61,7 +61,8 @@ const CATview = new function() {
     CATview.width_content = null;
     CATview.height_content = null;
     CATview.edgesAxis = null;
-    CATview.edge_name = null;
+    CATview.edge_name = null;            // current name to display
+    CATview.edge_name_enabled = true;    // set to false to disable the display the name of an edge on hovering
     CATview.font_size_x = 10;
     CATview.font_size_y = 14;
     CATview.rect_width = null;
@@ -1007,6 +1008,9 @@ const CATview = new function() {
     if(CATview.debug)
       console.log('CATview.show_edge_name: ' + _pos);
 
+    if(!CATview.edge_name_enabled)
+      return false;
+
     // respect current zooming
     _pos += CATview.from - 1;