LookAt Axis

hi,all
in the scripting help:
Transform.LookAt Description:Rotates the transform so the forward vector points at/target/'s current position.
but 3dsmax export FBX file,the forward is Y, not Z.
How do i use the LookAt function?
another, i have some tree(plane) in the “trees” tag,
but GameObject.FindWithTag(“trees”) find one tree,
how do i find more?
thanks,all

Probably the easiest way to go is to place your object inside a parent object, rotated so that Z is forward and Y is up (or alternatively, change the rotation in the 3D modelling app). The problem with transform.LookAt and the similar Quaternion.LookRotation is that the target direction and the “up” direction behave differently, so you can’t just swap the two vectors around.

ok, I understand,thank you;
perhaps I can solve this problem in the 3dsmax…