Quote Originally Posted by Soukyuu View Post
There is, it's:
/target <tt>
as in, "target's target"

There was also a way to automatically target the mob marked with 1 but I forgot how it went.
Another variation of this that I've used in FATEs is to mark a Tank/DD with a square (/mk "square" <t>) and use a /as <square>.

And the target placeholders are <attack1> - <attack4>, <bind1> - <bind3>, and <ignore1> & <ignore2>, any of which can be used to target from a macro.