1. If a document is "unpublished" it cannot be seen on the website, nor will it be listed in a menu or other type of list (unless the listing snippet such as Wayfinder is told to show unpublished documents), but a logged-in manager user can see it; he’ll just have to enter it manually into the browser address bar. The "preview" for the document will also work.
2. There are a few cart snippets, but they aren’t up to the quality of a full-blown ecommerce application. Everyone who tries (and that includes my efforts with ShopX) finds themselves bogged down in the issues surrounding ecommerce (inventory management, shipping, tax, etc) that cause ecommerce applications to be entire projects with teams of developers. Many find
FoxyCart and MODx work together very well, and while not free its cost is certainly reasonable.