For most plugins that's just the default behavior of those plugins (e.g. CB Gallery, CB Activity, etc..). Others of course need configuration (CB Code Field, CB Conditionals, etc..). No there is nothing you can install that'll preconfigure exactly like demo site. You can however download a package that has every plugin accessible to you in it by going to our donwloads page below and selecting what all you want installed.
www.joomlapolis.com/downloads
krileon
