About Isaac Glikson
This addon allows your to add html / php to the header / footer in the admin area / admin login page / clients area
Enabled Child Themes System for WHMCS like in Wordpress, So you can get updates without loosing your own Template / CSS / JS / Images customization (Supporting Admin & clients Area)
This addon allows you to know if the user opened the email / ticket that come from the WHMCS system incuding invoices and more
This addon allows your resellers clients to restart their server them self.
This addon allows you to change / assign a contact user, even after the order was placed already
This moduls is very useful for a free trial products or when the order total is $0.00, then its disabling all the payments options ..
give support for multiple remote WHMCS Ticket system in one screen
manage and reduce extra emails that are being sent to the customers