Hey all. There wasn't a better place to put this, but I thought I'd share a little magic trick I figured out today. It allows you to teleport sandstone into a new city so you have a nice big pile waiting for you when the castle finishes.
To do it, simply start with a huge wodge of sandstone in your main city, and do the command to found a new city.
Then, go into the new city and cancel the castle build task. The 2000 sandstone you used to pay for the building will still be at the empty city site. You can do this as many times as you want before you decide to let the city build for real.
Also note that you can take over city plots and cancel the build to have an empty city site, which you can rename. Dont do this to all of your empty city plots, of course -- gotta scout the neighbors, after all).
-Dk