How to replace support ticket links in emails

Hello,

First of all thank you for the awesome plugin! It works like charm.

Now I have only one small issue, that when a user submit a support ticket, they get an email with a link to the ticket pointing to the actual whmcs installation path:
/client/viewticket.php?tid=602808&c=jTcrAq5V

I know I can edit the email from whmcs email templates but I can’t get a variable for the c=**** part

I just need to know what variable to use in the email template to make this link
/viewticket.php?tid=602808&c=jTcrAq5V
becomes this:
/?ccce=viewticket&tid=602808&c=jTcrAq5V

so far I have this:
/?ccce=viewticket$tid={$ticket_id}&c=
but I still need a variable for c.

Thanks.