Please also download a trial version of IP Video System Design Tool 9.1 software from jvsg.com (video tutorials: overview, working with the site plan).
Thanks Drew91101 for the link to a free Vivotek version. But the thing is that version contains Vivitek cameras only.
And in case if you design video surveillance systems with other cameras you need to download a trial or paid version from JVSG website.
Thanks for your detailed post and for recommendation of JVSG video surveillance design software.
I wonder can you please share the camera layouting you made?