LightDM - Jun 2015 - Different xorg commands on different vt/session

Hi all,

I've recently upgraded from 1.10.3 to 1.14 and the seat management has
changed (I've read [1]). What I'm trying to achieve is a
"standard" X on
vt7 (with multisession/multiuser support), and an xdmcp client on
vt8. Previously, I had this in the lightdm.conf:

[Seat:0]
xserver-command=Xorg

[Seat:1]
xdmcp-manager=xdmcp-server.example.com

This worked well, now it doesn't... Technically I don't have two seats
as I have one screen, one graphic card, one keyboard, and one mouse, so
working with seats might be the wrong way.

I did try "attaching" the graphic card to a new seat, but ultimately
it
didn't work. The only way I found is to start an external-to-lightdm
seat-less "Xorg -query xdmcp-server :1 vt6", and let lightdm work
normally on vt7+.

Is there any way to make this work using lightdm? or generally
specifying different xorg parameters per vt/session?

Thanks in advance,
    Yair.

If it matters I'm working on debian mostly "unstable".

[1] http://lists.freedesktop.org/archives/lightdm/2014-August/000661.html