Is there a way for me to create Aliases in Apache without affecting my Plesk 8.2 ?

[bperrotta]

I have A VPS setup with fedora 6 on Networks solutions VPS.
I am not ready to forward my domain names yet.
So I use the vps alias 02c456a.netsolvps.com to view and edit
my wepages. the problem is is that I can only assign it to one virtual domain at a time.
My question is is there a way around this by editing the httpd.conf file directly, to allow all my virtual domains to use the same alias? I am asking this because as far as I know
there is no way to do this in plesk 8.2.

any suggestions appreciated,
Bill