AWS Elastic Disaster Recovery with Azure VMs

I'm trying to setup AWS Elastic Disaster Recovery for my Azure VMs. The replication to AWS and launching the recovery instances on AWS is going fine, but I ran into a problem when it comes to failback to Azure VMs. In order to do the failback, I need to boot Azure VM from the failback client (aws-failback-livecd-64bit.iso) which is not supported. I could work around that by converting the ISO to VHD, upload it to Azure storage account and boot the VM from there, but how do I then interact with it to enter the Access and Secret Key and other information that the agent might need in order to successfully pair with the relevant recovery instance on AWS? Is there any way to do that? Maybe to preconfigure the failback client with the information using some answer file or in any other way?