/p Taking LB <se.3>Tells the party you are taking the limit break before you use it. Two people using it at once wastes the bar entirely, which makes the announcement the important half of this macro.
<f> points an action at your focus target regardless of what you have selected. Set your co-tank or the enemy you need to watch as focus, and the macro becomes a permanent second target you can act on at will.
/micon "Your Action"
/merror off
/ac "Your Action" <f>
/ac "Your Action" <t>