Dynamically prefill ticket fields

Dynamically prefill ticket fields

Hello,

I am using Zoho Desk to collect tickets of our clients about orders they placed on our website. I would like to be able to prefill two tickets fields dynamically, in this case a readonly field for the order id, and a hidden field for the seller id.
The clients access the ticket form by clicking a link in our customer area, so ideally I would like to pass the values to prefill with as part of the URL.

I imagine that this could be along the lines of calling https://our-domain/portal/newticket?order_id=123&seller_id=456
and that this would fill the fields labelled 'order_id' and 'seller_id', but maybe this isn't the way to go.

Is there any way to achieve this kind of behaviour ?
Please note that ticket template is not what I search for, but really dynamical filling depending on where my client is clicking.

Thanks for any help !