If your template isn't listed here it means that all pages are full-width by default
All of our WHMCS Themes allow you to make a page use the full width available (no sidebar) quite easily.
Each template uses full width for the register, clientarea, creditcard & cart pages by default so the functionality exists. If you’d like to make your own page or an existing page use full width it would simply be a matter of adding it to the existing code. This tutorial will explain how it’s done for each template.
For the sake of this tutorial we’ll assume that you’ve created a page named custom.php.
Note, the text used between the double quotes for each if filename = “” is the page name without the .php extension. So as you can see register.php (register), clientarea.php (clientarea), creditcard.php (creditcard) & cart.php (cart) are already setup to use full width.
Firstly open the following file:
scroll down and find the following code: