diff --git a/instance/doc/doc.txt b/instance/doc/doc.txt
index 526a8f8..de3b30b 100644
--- a/instance/doc/doc.txt
+++ b/instance/doc/doc.txt
@@ -1,3 +1,17 @@
+/******************/
+Tips
+/******************/
+1. During install I recommend disable cache.
+https://livehelperchat.com/article/view/40
+
+2. To clear clients instance. Change cd part to your requirements.
+cd /var/www/client/lhc_web && php cron.php -s site_admin -c cron/util/clear_cache
+
+3. To update clients databases. Change cd part to your requirements.
+cd /var/www/manager/lhc_web && php cron.php -s site_admin -e instance -c cron/update_instances
+
+4. After you see that everything is working execute 2 command and enable cache.
+
 /******************/
 Install
 /******************/
@@ -134,7 +148,11 @@ And notify url provide
 E.g
 http://manager.livehelperchat.com/instance/paypalipn
 
-19. Don't forget to clear cache
+19. If you are going to provide in automatd hosting Co-Browsing support using NodeJS. I suggest edit
+These two templates and set static nodejs address. I suggest to have https in general, will avoid problems with sites which hash https enabled. 
+https://github.com/LiveHelperChat/automated-hosting/tree/master/instancecustomer/design/instancecustomertheme/tpl/lhcobrowse
+
+20. Don't forget to clear cache
 
 /******************/
 Manager nginx example