diff --git a/.gitignore b/.gitignore
index 39d3807..0194eed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,6 @@ build/**
 
 # Ignore generated docs
 utils/doc/generated_docs
+
+# Ignore IntelliJ Files
+.idea
diff --git a/src/js/pannellum.js b/src/js/pannellum.js
index 09f12bf..cad2cfa 100644
--- a/src/js/pannellum.js
+++ b/src/js/pannellum.js
@@ -103,6 +103,7 @@ var defaultConfig = {
     draggable: true,
     disableKeyboardCtrl: false,
     crossOrigin: 'anonymous',
+    usedKeyNumbers: [16, 17, 27, 37, 38, 39, 40, 61, 65, 68, 83, 87, 107, 109, 173, 187, 189],
 };
 
 // Translatable / configurable strings
@@ -129,8 +130,6 @@ defaultConfig.strings = {
     unknownError: 'Unknown error. Check developer console.',
 }
 
-var usedKeyNumbers = [16, 17, 27, 37, 38, 39, 40, 61, 65, 68, 83, 87, 107, 109, 173, 187, 189];
-
 // Initialize container
 container = typeof container === 'string' ? document.getElementById(container) : container;
 container.classList.add('pnlm-container');
@@ -1009,7 +1008,7 @@ function onDocumentKeyPress(event) {
     var keynumber = event.which || event.keycode;
 
     // Override default action for keys that are used
-    if (usedKeyNumbers.indexOf(keynumber) < 0)
+    if (config.usedKeyNumbers.indexOf(keynumber) < 0)
         return
     event.preventDefault();
     
@@ -1045,7 +1044,7 @@ function onDocumentKeyUp(event) {
     var keynumber = event.which || event.keycode;
     
     // Override default action for keys that are used
-    if (usedKeyNumbers.indexOf(keynumber) < 0)
+    if (config.usedKeyNumbers.indexOf(keynumber) < 0)
         return
     event.preventDefault();