Can clients order WHMCS products from their WPMU site admin area?

Hi everyone - hope you are well.
I am wondering if there is a way to offer products defined in WHMCS directly from my client's WP website admin.

Here is the scenario:
They buy their website using WHMCS - this creates two accounts for them - one on WHMCS, one on Wordpress. But really, they will never log on to the WHMCS client area. I want them to login to their website so that they can manage their CRM, their appointments, etc. But I also want them to be able to open a support ticket or order a custom product from there. Is it possible?

Thanks in advance.
Andrea