Creating a VM template with more than one VHDX

Hi,

I have created a VM template of a server on my Hyper-V environment. The  VM has 3 expanding VHDx disks.

However, the template only captures 1 disk (the disk with the OS). How do I create a template which will automatically capture the other 2 disks?

I've noticed that when I create a vm of this template, I can specify additional disks. However, these disks are the standard ones (small/large etc) in the VHD folder of the library share. However, even with the VHDx files in this directory. they aren't deticted in SCVMM in the library. How can I address this?