diff --git a/doc/events.md b/doc/events.md
index 4471431..6b70488 100644
--- a/doc/events.md
+++ b/doc/events.md
@@ -11,6 +11,16 @@ Fired when a scene change is initiated. A `load` event will be fired when the
 new scene finishes loading. Passes scene ID string to handler.
 
 
+## `fullscreenchange`
+
+Fired when browser fullscreen status changed. Passes status boolean to handler.
+
+
+## `zoomchange`
+
+Fired when scene hfov update. Passes new HFOV value to handler.
+
+
 ## `scenechangefadedone`
 
 If a scene transition fade interval is specified, this event is fired when the
@@ -46,3 +56,4 @@ Fired when a touch starts. Passes `TouchEvent` to handler.
 ## `touchend`
 
 Fired when a touch ends. Passes `TouchEvent` to handler.
+
diff --git a/doc/json-config-parameters.md b/doc/json-config-parameters.md
index 65e7c76..7d86bfb 100644
--- a/doc/json-config-parameters.md
+++ b/doc/json-config-parameters.md
@@ -151,7 +151,16 @@ Defaults to `undefined`, so the viewer center can reach `-90` / `90`.
 ### `minHfov` and `maxHfov` (number)
 
 Sets the minimum / maximum horizontal field of view, in degrees, that the
-viewer can be set to. Defaults to `50` / `120`.
+viewer can be set to. Defaults to `50` / `120`. Unless the `multiResMinHfov`
+parameter is set to `true`, the `minHfov` parameter is ignored for
+`multires` panoramas.
+
+
+### `multiResMinHfov` (boolean)
+
+When set to `false`, the `minHfov` parameter is ignored for `multires`
+panoramas; an automatically calculated minimum horizontal field of view is used
+instead. Defaults to `false`.
 
 
 ### `compass` (boolean)
@@ -209,9 +218,9 @@ This specifies the type of CORS request used and can be set to either
 `anonymous` or `use-credentials`. Defaults to `anonymous`.
 
 
-### `hotSpots` (array)
+### `hotSpots` (object)
 
-This specifies an array of hot spots that can be links to other scenes,
+This specifies a dictionary of hot spots that can be links to other scenes,
 information, or external links. Each array element has the following properties.
 
 
@@ -241,6 +250,11 @@ spot.
 If specified for an `info` hot spot, the hot spot links to the specified URL.
 Not applicable for `scene` hot spots.
 
+#### `attributes` (dict)
+
+Specifies URL's link attributes. If not set, the `target` attribute is set to
+`_blank`, to open link in new tab to avoid opening in viewer frame / page.
+
 #### `sceneId` (string)
 
 Specifies the ID of the scene to link to for `scene` hot spots. Not applicable
diff --git a/src/js/pannellum.js b/src/js/pannellum.js
index f5aeb6c..f233249 100644
--- a/src/js/pannellum.js
+++ b/src/js/pannellum.js
@@ -72,6 +72,7 @@ var config,
 var defaultConfig = {
     hfov: 100,
     minHfov: 50,
+    multiResMinHfov: false,
     maxHfov: 120,
     pitch: 0,
     minPitch: undefined,
@@ -999,7 +1000,6 @@ function onDocumentMouseWheel(event) {
         setHfov(config.hfov + event.detail * 1.5);
         speed.hfov = event.detail > 0 ? 1 : -1;
     }
-    
     animateInit();
 }
 
@@ -1707,7 +1707,13 @@ function createHotSpot(hs) {
     } else if (hs.URL) {
         a = document.createElement('a');
         a.href = sanitizeURL(hs.URL);
-        a.target = '_blank';
+        if (hs.attributes) {
+            for (var key in hs.attributes) {
+                a.setAttribute(key, hs.attributes[key]);
+            }
+        } else {
+            a.target = '_blank';
+        }
         renderContainer.appendChild(a);
         div.className += ' pnlm-pointer';
         span.className += ' pnlm-pointer';
@@ -2106,7 +2112,7 @@ function onFullScreenChange() {
         controls.fullscreen.classList.remove('pnlm-fullscreen-toggle-button-active');
         fullscreenActive = false;
     }
-
+    fireEvent('fullscreenchange', fullscreenActive);
     // Resize renderer (deal with browser quirks and fixes #155)
     renderer.resize();
     setHfov(config.hfov);
@@ -2144,7 +2150,7 @@ function zoomOut() {
 function constrainHfov(hfov) {
     // Keep field of view within bounds
     var minHfov = config.minHfov;
-    if (config.type == 'multires' && renderer) {
+    if (config.type == 'multires' && renderer && config.multiResMinHfov) {
         minHfov = Math.min(minHfov, renderer.getCanvas().width / (config.multiRes.cubeResolution / 90 * 0.9));
     }
     if (minHfov > config.maxHfov) {
@@ -2178,6 +2184,7 @@ function constrainHfov(hfov) {
  */
 function setHfov(hfov) {
     config.hfov = constrainHfov(hfov);
+    fireEvent('zoomchange', config.hfov);
 }
 
 /**
@@ -2882,7 +2889,8 @@ this.removeHotSpot = function(hotSpotId, sceneId) {
  * @instance
  */
 this.resize = function() {
-    onDocumentResize();
+    if (renderer)
+        onDocumentResize();
 }
 
 /**
diff --git a/utils/video/videojs-pannellum-plugin.js b/utils/video/videojs-pannellum-plugin.js
index 0d49c59..2621657 100644
--- a/utils/video/videojs-pannellum-plugin.js
+++ b/utils/video/videojs-pannellum-plugin.js
@@ -7,12 +7,14 @@
 (function(document, videojs, pannellum) {
 'use strict';
 
-videojs.plugin('pannellum', function(config) {
+var registerPlugin = videojs.registerPlugin || videojs.plugin;  // Use registerPlugin for Video.js >= 6
+registerPlugin('pannellum', function(config) {
     // Create Pannellum instance
     var player = this;
     var container = player.el();
     var vid = container.getElementsByTagName('video')[0],
         pnlmContainer = document.createElement('div');
+    pnlmContainer.style.zIndex = '0';
     config = config || {};
     config.type = 'equirectangular';
     config.dynamic = true;