Reply To: Allowed only first name in first name fields

Superb!
thank you so much
it works ! I am happy

I already have a plugin that was created:
Quform-custom.php
I insert here all the code relating to the change of the form and also the imput mask, validator 18 years …)

For this code (allow first names in the list)
I need a specific .php page

Can I create a new .php file (example Quform-firstname.php) add this code and integrate this new .php file with the plugin “Quform-custom”?