That depends on what you mean by "all settings". There is info in the accounts file (and the other files in /home/e-smith) that is machine specific, so you'd probably have to cull through the file(s) and extract just the portions you want. Then you need to examine the events (located in /etc/e-smith/events) to see which ones are like to apply (create-user, etc.) Or you might find the action itself (/etc/e-smith/events/actions) or you might try a post-upgrade event (/sbin/e-smith/signal-event post-upgrade.)
As you probably gather, there is no clean and simple answer to your question.
However, if you mean how do you transfer EVERYTHING from one system to another -- for example, to duplicate the entire e-smith system to another box -- then you need to look at the reinstallation boot disk and the backup options. The reinstall disk serves as the boot floppy for a new install, except that it will preset the essential options so your newly installed server can see its network. Once that is done, restoring a backup will do the rest. (One of the things on my wishlist is a "configuration only" backup -- on that restores system and network options, users, ibays, etc, but without restoring an content in the user/ibay directories.)
Scott