Online payments (Gocardless)

Morning all.
I’ve done a (very) long overdue update to invoiceplane (I was still running 1.4.3) and am mightily impressed with the update!

I’d like to try and implement the online payment feature using gocardless. I am going to contact gocardless support to see if they can help, but I thought i’d throw it out there in case anyone else has done it.
As far as I can see, I only need to use the app id (would that be the token id?) and the access token itself.
do I need the app secret or merchant id?

Thanks in advance.

There already is a driver for the used Omnipay library.

You have to add information about the driver and all form fields to the config file. But no further support for that at the moment, sorry.