reference another stack

[Howard Bornstein]

>If you've saved the stack on the server, then using the "revert" command on
>the remote will reload the stack from the server's disk. This updates the
>copy in the remote's memory so it's the same as the one on the server.

Hi Jeanne,

This raises another question I've been wondering about, since the app I'm 
developing may face this situation.

If a writable stack is placed on a server, is there a way to insure that 
changes made to it by multiple people simulataneously are all kept?