Uninterruptible channeling spell

[Veliotv]

Hello guys, i need your wisdom once again. I have made a trigger that orders my boss unit to cast channeling spell on enemy, the boss casts the spell but channels it for 1-2 seconds only and continue to attack. How do i make him channel the full duration of the spell?

 

[defskull]

You mean the boss decides to cancel the channeling and continues attacking enemies even if you force-order the boss ?

 

[Veliotv]

Yes!!!