3rd Party Login Module

-- HikaShop version -- : 4.2.3
-- Joomla version -- : 3.9.16

Hi,

I am using a third party login/registration module ( Offljan Improved AJAX Login & Register - offlajn.com/improved-ajax-login-register...ter/flypage.tpl.html )

It has been in use on the site for some time and works perfectly. I recently added Hikashop and need to use the same login/registration module. There isn't a problem if the user is already logged in, but if they are not then Hikashop displays the standard Joomla login/registration at checkout which I don't want.

I've had a good search and came across an old topic that sort of addresses the problem - www.hikashop.com/forum/4-how-to/12171-lo...nd-registration.html - I've now got it so it says "Please login or register using the buttons at the top of the page before checking out" by editing the show_block_login.php file. It's not ideal, but it works. However that message is displayed even after the user is logged in. My users are mostly older people so not the smartest with technology. I really need to get a proper fix to this and don't mind paying for it. Ideally with the correct modal popups.

Thanks in advance

Andy

BTW, the code I've put in the show_block_login.php file is:

<?php if(!$this->identified){
$this->nextButton = false;
?><p style="color:#ff0000;weight:800;">Please make sure you Login or Register using the buttons at the top of the page before checking out</p>
<?php }

I have the same issue.
I am familiar with and use modules anywhere... but not sure where to add the shortcake tag to have it fire over the standard login on checkout. Can you point me where to it should be added?