In this part, moster that carries the idol, can move and pose the idol in a turn?...

Or he can pose idol and skip a full turn?

If is true the second option i think that is impossible win this encounter for OL..

It's not worded very well, but I think the intent is that the monster carrying the idol has two available actions: move action or put down the idol. It may only choose "Move Action" once per turn while carrying the idol.

It may be worth asking FFG for an official answer.

Ok, thx... i think this too...