Is the editor included in the steam download?

[City Builder]

Hi,

Is the editor included in the steam download? Or must we download it from somewhere else?

Many of my Steam games have the editors or servers listed on the Tools page in the steam client, but it doesn't list King's Bounty Crossworld Editor in there and it'll be at least another hour or 6 before Steam client gets around to installing the game for me since Im having to reinstall all my steam games due to steam client boffo'ing up on my hdd.

So... Is it? Does it come as part of the steam download in teh 4,198.3MB steam file?