diff --git a/controller/documentcontroller.php b/controller/documentcontroller.php
index 20045d28..61b0f20e 100644
--- a/controller/documentcontroller.php
+++ b/controller/documentcontroller.php
@@ -121,12 +121,42 @@ class DocumentController extends Controller {
 		return $response;
 	}
 
+    /**
+     * Return the original wopi url or test wopi url
+     * This depends on whether current user is the member of one of the groups
+     * mentioned in settings in which case different wopi url (aka
+     * test_wopi_url) is used
+     */
+     private function getWopiUrl() {
+         $wopiurl = $this->appConfig->getAppValue('wopi_url');
+
+         $user = \OC::$server->getUserSession()->getUser()->getUID();
+         $testgroups = array_filter(explode('|', $this->appConfig->getAppValue('test_server_groups')));
+         \OC::$server->getLogger()->debug('Testgroups are {testgroups}', [
+             'app' => $this->appName,
+             'testgroups' => $testgroups
+         ]);
+         foreach ($testgroups as $testgroup) {
+             $test = \OC::$server->getGroupManager()->get($testgroup);
+             if (sizeof($test->searchUsers($user)) > 0) {
+                 \OC::$server->getLogger()->debug('User {user} found in {group}', [
+                     'app' => $this->appName,
+                     'user' => $user,
+                     'group' => $testgroup
+                 ]);
+                 return $this->appConfig->getAppValue('test_wopi_url');
+             }
+         }
+
+         return $wopiurl;
+     }
+
 	/** Return the content of discovery.xml - either from cache, or download it.
 	 */
 	private function getDiscovery(){
 		\OC::$server->getLogger()->debug('getDiscovery(): Getting discovery.xml from the cache.');
 
-		$wopiRemote = $this->appConfig->getAppValue('wopi_url');
+		$wopiRemote = $this->getWopiUrl();
 
 		// Provides access to information about the capabilities of a WOPI client
 		// and the mechanisms for invoking those abilities through URIs.
@@ -188,7 +218,7 @@ class DocumentController extends Controller {
 
 			if ($discovery_parsed === false) {
 				$this->cache->remove('discovery.xml');
-				$wopiRemote = $this->appConfig->getAppValue('wopi_url');
+				$wopiRemote = $this->getWopiUrl();
 
 				return array(
 					'status' => 'error',
@@ -246,7 +276,7 @@ class DocumentController extends Controller {
 	 * @NoCSRFRequired
 	 */
 	public function index(){
-		$wopiRemote = $this->appConfig->getAppValue('wopi_url');
+		$wopiRemote = $this->getWopiUrl();
 		if (($parts = parse_url($wopiRemote)) && isset($parts['scheme']) && isset($parts['host'])) {
 			$webSocketProtocol = "ws://";
 			if ($parts['scheme'] == "https") {
@@ -350,7 +380,7 @@ class DocumentController extends Controller {
 
 			if ($discovery_parsed === false) {
 				$this->cache->remove('discovery.xml');
-				$wopiRemote = $this->appConfig->getAppValue('wopi_url');
+				$wopiRemote = $this->getWopiUrl();
 
 				return array(
 					'status' => 'error',
diff --git a/controller/settingscontroller.php b/controller/settingscontroller.php
index 945b021b..bebc7720 100644
--- a/controller/settingscontroller.php
+++ b/controller/settingscontroller.php
@@ -49,7 +49,9 @@ class SettingsController extends Controller{
 	public function getSettings() {
 		return array(
 			'doc_format' => $this->appConfig->getAppValue('doc_format'),
-			'wopi_url' => $this->appConfig->getAppValue('wopi_url')
+			'wopi_url' => $this->appConfig->getAppValue('wopi_url'),
+			'test_wopi_url' => $this->appConfig->getAppValue('test_wopi_url'),
+			'test_server_groups' => $this->appConfig->getAppValue('test_server_groups')
 		);
 	}
 
@@ -74,13 +76,15 @@ class SettingsController extends Controller{
 			[
 				'wopi_url' => $this->appConfig->getAppValue('wopi_url'),
 				'edit_groups' => $this->appConfig->getAppValue('edit_groups'),
-				'doc_format' => $this->appConfig->getAppValue('doc_format')
+				'doc_format' => $this->appConfig->getAppValue('doc_format'),
+				'test_wopi_url' => $this->appConfig->getAppValue('test_wopi_url'),
+				'test_server_groups' => $this->appConfig->getAppValue('test_server_groups')
 			],
 			'blank'
 		);
 	}
 
-	public function setSettings($wopi_url, $edit_groups, $doc_format){
+	public function setSettings($wopi_url, $edit_groups, $doc_format, $test_wopi_url, $test_server_groups){
 		if (!is_null($wopi_url)){
 			$this->appConfig->setAppValue('wopi_url', $wopi_url);
 		}
@@ -93,6 +97,14 @@ class SettingsController extends Controller{
 			$this->appConfig->setAppValue('doc_format', $doc_format);
 		}
 
+		if (!is_null($test_wopi_url)){
+			$this->appConfig->setAppValue('test_wopi_url', $test_wopi_url);
+		}
+
+		if (!is_null($test_server_groups)){
+			$this->appConfig->setAppValue('test_server_groups', $test_server_groups);
+		}
+
 		$richMemCache = \OC::$server->getMemCacheFactory()->create('richdocuments');
 		$richMemCache->clear('discovery.xml');
 
diff --git a/js/admin.js b/js/admin.js
index 223b1173..62a48c32 100644
--- a/js/admin.js
+++ b/js/admin.js
@@ -33,6 +33,25 @@ var documentsSettings = {
 		);
 	},
 
+	saveTestWopi: function(groups, server) {
+		var data = {
+			'test_wopi_url': server,
+			'test_server_groups': groups
+		};
+
+		OC.msg.startAction('#test-documents-admin-msg', t('richdocuments', 'Saving...'));
+		$.post(
+			OC.filePath('richdocuments', 'ajax', 'admin.php'),
+			data,
+			documentsSettings.afterSaveTestWopi
+		);
+	},
+
+	afterSaveTestWopi: function(response) {
+		$('#test_wopi_apply').attr('disabled', false);
+		OC.msg.finishedAction('#test-documents-admin-msg', response);
+	},
+
 	afterSave : function(response){
 		$('#wopi_apply').attr('disabled', false);
 		OC.msg.finishedAction('#documents-admin-msg', response);
@@ -48,9 +67,64 @@ var documentsSettings = {
 		}
 	},
 
+	initTestWopiServer: function() {
+		var groups = $(document).find('#test_server_group_select').val();
+		var testserver = $(document).find('#test_wopi_url').val();
+
+		if (groups === '' || testserver === '') {
+			$(document).find('label[for="test_server_group_select"]').hide();
+			$(document).find('label[for="test_wopi_url"]').hide();
+			$(document).find('#test_wopi_url').hide();
+			$(document).find('#test_wopi_apply').hide();
+			$('.test-server-enable').attr('checked', null);
+		} else {
+			OC.Settings.setupGroupsSelect($('#test_server_group_select'));
+			$('.test-server-enable').attr('checked', 'checked');
+		}
+	},
+
 	initialize: function() {
-		$('#wopi_apply').on('click', documentsSettings.save);
 		documentsSettings.initEditGroups();
+		documentsSettings.initTestWopiServer();
+
+		$('#wopi_apply').on('click', documentsSettings.save);
+
+		$(document).on('change', '.test-server-enable', function() {
+			var page = $(this).parent();
+			var $select = page.find('#test_server_group_select');
+			$select.val('');
+
+			if (this.checked) {
+				page.find('label[for="test_server_group_select"]').show();
+				page.find('label[for="test_wopi_url"]').show();
+				page.find('#test_wopi_apply').show();
+				page.find('#test_wopi_url').show();
+
+				OC.Settings.setupGroupsSelect($select, {
+					placeholder: t('core', 'None')
+				});
+			} else {
+				page.find('label[for="test_server_group_select"]').hide();
+				page.find('label[for="test_wopi_url"]').hide();
+				page.find('#test_wopi_apply').hide();
+				page.find('#test_wopi_url').val('');
+				page.find('#test_wopi_url').hide();
+				$select.select2('destroy');
+
+				documentsSettings.saveTestWopi('', '');
+			}
+		});
+
+		$(document).on('click', '#test_wopi_apply', function() {
+			var groups = $(this).parent().find('#test_server_group_select').val();
+			var testserver = $(this).parent().find('#test_wopi_url').val();
+
+			if (groups !== '' && testserver !== '') {
+				documentsSettings.saveTestWopi(groups, testserver);
+			} else {
+				OC.msg.finishedError('#test-documents-admin-msg', 'Both fields required');
+			}
+		});
 
 		$(document).on('change', '.doc-format-ooxml', function() {
 			var ooxml = this.checked;
diff --git a/templates/admin.php b/templates/admin.php
index 412c47d6..30b381b1 100644
--- a/templates/admin.php
+++ b/templates/admin.php
@@ -9,10 +9,23 @@ script('richdocuments', 'admin');
 	<br /><button type="button" id="wopi_apply"><?php p($l->t('Apply')) ?></button>
 	<span id="documents-admin-msg" class="msg"></span>
     <br/>
-    <input type="checkbox" class="edit-groups-enable" id="edit_groups_enable-richdocuments" data-appid="richdocuments" />
+
+    <input type="checkbox" class="test-server-enable" id="test_server_enable-richdocuments" />
+    <label for="test-server-enable"><?php p($l->t('Enable test servers for specific groups')) ?></label>
+    <br/>
+    <label for="test_server_group_select"><?php p($l->t('Groups')) ?></label>
+    <input type="hidden" id="test_server_group_select" value="<?php p($_['test_server_groups'])?>" title="<?php p($l->t('None')); ?>" style="width: 200px" />
+
+    <label for="test_wopi_url"><?php p($l->t('Test server')) ?></label>
+    <input type="text" name="test_wopi_url" id="test_wopi_url" value="<?php p($_['test_wopi_url'])?>" style="width:300px;" />
+    <br/>
+    <button type="button" id="test_wopi_apply"><?php p($l->t('Apply')) ?></button>
+    <span id="test-documents-admin-msg" class="msg"></span>
+    <br/>
+    <input type="checkbox" class="edit-groups-enable" id="edit_groups_enable-richdocuments" />
     <label for="edit_groups_enable-richdocuments"><?php p($l->t('Enable edit for specific groups')) ?></label>
     <input type="hidden" id="edit_group_select" value="<?php p($_['edit_groups'])?>" title="<?php p($l->t('All')); ?>" style="width: 200px">
     <br/>
-    <input type="checkbox" class="doc-format-ooxml" id="doc_format_ooxml_enable-richdocuments" <?php p($_['doc_format'] === 'ooxml' ? 'checked' : '') ?> data-appid="richdocuments" />
+    <input type="checkbox" class="doc-format-ooxml" id="doc_format_ooxml_enable-richdocuments" <?php p($_['doc_format'] === 'ooxml' ? 'checked' : '') ?> />
     <label for="doc_format_ooxml_enable-richdocuments"><?php p($l->t('Use OOXML by default for new files')) ?></label>
-</div>
+</div>
\ No newline at end of file