"virtual hosts" for combined graphs?

I created a small script that scrapes info from several hosts/rrd's
(connections to a particular IIS site) and puts it in a combined graph
(see attached sample). I'm curious if it's possible to somehow create a
"virtual host" in hobbit and use the hobbitgraph.cgi functions to create
the graphs so I can also have the zoom & history functions.

This is the script that created the attached graph:

#!/bin/bash

timestamp=COMMENT:Updated\\:`date|sed 's/:/\\\\:/g'`

rrdtool graph combined.png \
--imgformat=PNG \
--title="Connections to xxxxxx.xxx.xx Last 48 Hours" \
--base=1000 \
--height=120 \
--width=576 \
-s e-48h \
--slope-mode \
--lower-limit=0 \
--vertical-label="# connections" \
--step 576 \
'DEF:a=/var/lib/hobbit/rrd/server1/iisinfo.online.han.nl.rrd:realmempct:AVERAGE'
\
'AREA:a#0000CC:server1\t'  \
'GPRINT:a:AVERAGE:Avg\: %7.0lf %s\t'  \
'GPRINT:a:MAX:Max\: %7.0lf %s\j'  \
'DEF:b=/var/lib/hobbit/rrd/server2/iisinfo.online.han.nl.rrd:realmempct:AVERAGE'
\
'STACK:b#0000FF:server2\t'  \
'GPRINT:b:AVERAGE:Avg\: %7.0lf %s\t'  \
'GPRINT:b:MAX:Max\: %7.0lf %s\j'  \
'DEF:c=/var/lib/hobbit/rrd/server3/iisinfo.online.han.nl.rrd:realmempct:AVERAGE'
\
'STACK:c#3333FF:server3\t'  \
'GPRINT:c:AVERAGE:Avg\: %7.0lf %s\t'  \
'GPRINT:c:MAX:Max\: %7.0lf %s\j' \
'DEF:d=/var/lib/hobbit/rrd/server4/iisinfo.online.han.nl.rrd:realmempct:AVERAGE'
\
'STACK:d#6666FF:server4\t'  \
'GPRINT:d:AVERAGE:Avg\: %7.0lf %s\t'  \
'GPRINT:d:MAX:Max\: %7.0lf %s\j' \
'DEF:e=/var/lib/hobbit/rrd/server5/iisinfo.online.han.nl.rrd:realmempct:AVERAGE'
\
'STACK:e#9999FF:server5\t'  \
'GPRINT:e:AVERAGE:Avg\: %7.0lf %s\t'  \
'GPRINT:e:MAX:Max\: %7.0lf %s\j' \
'DEF:f=/var/lib/hobbit/rrd/server6/iisinfo.online.han.nl.rrd:realmempct:AVERAGE'
\
'STACK:f#CCCCFF:server6\t'  \
'GPRINT:f:AVERAGE:Avg\: %7.0lf %s\t'  \
'GPRINT:f:MAX:Max\: %7.0lf %s\j' \
'CDEF:total=a,b,+,c,+,d,+,e,+,f,+' \
'LINE1:total#FF0000:Total\t' \
'GPRINT:total:AVERAGE:Avg\: %7.0lf %s\t' \
'GPRINT:total:MAX:Max\: %7.0lf %s\j'  \
"$timestamp"