"Run Command" as logged user within Advanced window of policy

You can script it, or you can use a user agent, which will run as the user as well.

I've been known to use "su" for this purpose:

su <user> -c "command arg1 arg2 arg3"

Be very careful about quotes and shell escapes in the command.

If you are after a one liner, try something like this:

for myUser in $(stat -f%Su /dev/console); do su $myUser -c 'ls -al'; done

Haven't tested it through the Casper Advanced Window, but I see no reason why it shouldn't work. I imagine the shell type would be appropriate.

Sean