Hexa Extra Template
You can edit header.tpl file (header.tpl.new can be renamed to header.tpl in overrides folder). Overrides folder will help with keeping customizations during updates.
The navbar li item can be duplicated and customized for your needs.

<a href="/index.php?m=clientnotify">Notification Settings</a>

Version 4.5.x you don't need to edit any template you can do of the Hexa Extra Menu

Flattern Extra Template

You can edit header.tpl file (header.tpl.new can be renamed to header.tpl in overrides folder). Overrides folder will help with keeping customization during updates.
The navbar li item can be 

<li><a href="index.php?m=clientnotifyn">Notification Settings</a></li>

1) Inactivate Account: Admin can set x days from module configuration and module inactivate the unverified client after x days of registration

2) Auto-terminate: It's closing the account and terminating the client service.

3) Delete Account: An option to delete an unverified account with no active order and its users after x days of registration. This will permanently delete the account from the WHMCS system

If this is hosted on a cPanel server with 200 other sites (where WHMCS is hosted) how much impact will it have on the other sites if CloudLinux is not used?

ANS: their is np to you use in shared hosts but we recommend to use in VM or dedicated, everything about the processing time and how much servers need to monitor, I can tell if you have many monitors you time is important and other is OK

In server monitoring we have some solution to check from multi locations and some times it's taking while to finish in all location then we recommend don't use lesser then 5 minutes monitors to all can working right, about the CPU it's don't cost many process

It's WHMCS addon and you should use in WHMCS

As a result, we would like to share information with you on our Halloween Special Offers that are available with WHMCS Services.

All WHMCS Modules will be discounted at an unbelievable rate of 30%. That is right, you heard right - 30% discount on all WHMCS Modules!

How Long Will this Sale Last?
This Halloween Special will last until 1 Nov, 2017

To take advantages of the sale simply add a WHMCS Modules program to your shopping cart.

Do missing this great Halloween Special! deal. Remember to put Halloween on any of the orders listed on the forms.

Here is a list of our various software products at http://www.whmcsservices.com/halloween.php

If you do not use this discount code when you order, you will NOT get the 30% off. 

Please remember to use the discount when you order.

Save even more!

Hurry! Sale Ends November 1, 2017!

WHMCS Services - sales (at) whmcsservices.com

Do You Need Custom Development?
Don't hesitate any longer! Contact us now!

We also provide WHMCS Themes, WHMCS Integration services with our partnership.

Chat with us through live support; or send in a ticket if you would like more information.

If you have any questions about our services, please chat with us at http://www.whmcsservices.com or contact us at sales (at) whmcsservices.com 

Thanks again for choosing WHMCS Services. We appreciate your business!

We are pleased to announce the release of  WS Gateway Fees 3.2.0 for WHMCS.  This release includes updates

Changelog

Fixed small bug on WS Client Verification 2.0.2 for WHMCS Now Available - https://www.whmcsservices.com/clientverification.php

Version: 1.0.1 Released (02/12/2025)
Maintenance

Updated Support WHMCS 8.11.x & 12.x
Updated Support PHP 8.3
Updated Ioncube 14 Support
Updated Remove Support for PHP 7.4
Updated Remove Support for WHMCS V8.7 to 8.9

Version: 1.0.0 Released (07/20/2024)
Stable

New Initial Release

Version: 4.1.0 Released (02/25/2025)
Maintenance

Added App Links Logs
Added Prune API Logs
Added Prune Ticket Mail Logs
Updated Support WHMCS 8.11.x & 12.x
Updated Remove Support for WHMCS V8.7 to 8.9
Updated Remove Support for PHP 7.4
Updated Improve ionCube Loader v14

Version: 4.0.3 Released (03/13/2024)
Maintenance

Fixed Support WHMCS 8.9
Updated Menu

Version: 4.0.2 Released (01/04/2024)
Maintenance

Fixed support for ionCube Loader v13
Updated work with Licence System
Updated Improve ionCube Loader
Updated Remove Support for WHMCS V8.4 to 8.6

Version: 4.0.1 Released (11/25/2022)
Maintenance

Fixed Automatic purge days would not show for Error Log
Fixed Support PHP 8.1
Updated Remove Support for PHP 7.2 to 7.3
Updated Remove Support for WHMCS V8.2 to 8.3

Version: 4.0.0 Released (09/13/2021)
Stable

Added Ioncube Logs - Ability to manually/automatically purge Ioncube Logs
Added Cron/Register Logs - Ability to manually/automatically purge Cron/Register Logs
Added Update Logs - Ability to manually/automatically purge Update Logs
Added Error Logs - Ability to manually/automatically purge Error Logs
Fixed count(): Parameter must be an array or an object that implements Countable

Version: 3.0.0 Released (04/06/2018)
Stable

Added Capsule DB
Added Lang files
Added Clean up System Email Message Log
Added Clean up Ticket Notes

Version: 2.3.0 Released (11/10/2016)
Maintenance

Updated WHMCS V7 support
Updated Improve License Check

Version: 2.2.0 Released (24/10/2015)
Maintenance Release

Updated License Code change