Ah, yes, of course!
Thank you!
# Disable netwatch for host 1.1.1.1
/tool netwatch disable [find host=1.1.1.1]
apr/06/2006 02:24:52 System-Error: script error: no such command or directory (find)
Note that it is impossible to import the whole router configuration using this feature. It can only be used to import a part of configuration (for example, firewall rules) in order to spare you some typing.