Jeremy C. Reed wrote:
> When I tried to run "Xorg vt07", it said display already in use.
> 
> So I did "Xorg :1 vt07" and it complained:
> 
> Fatal server error:
> xf86OpenPcvt: Cannot open /dev/ttyE6 (Device not configured)
> 
> I read that the "vt" does nothing and just uses first available terminal.

I rather read that it uses exactly what you asked it to use in the second
case except that one counts from zero and the other from one.

> Do I need to use options WSDISPLAY_DEFAULTSCREEN ?

No,  I have this in /etc/wscons.conf:
screen	0	-	vt100
screen	1	-	vt100
screen	2	-	vt100
screen	3	-	vt100
screen	4	-	vt100
screen	5	-	-
screen  6	-	-
screen  7	-	-

-- 
Christian