Right now terrain builder takes object imports in the order row format:

template;_x_pos;_y_pos;_yaw;_pitch;_roll;_scale;_z_pos_rel;

The problem with this format is, that the orientation angles (pseudo euler angles) are not defining an unique orientation, it depends on the order.

Two vector (up and dir) as orientation are much better. They are unambiguous!

A format like this

template;_x_pos;_y_pos;dirX;dirY;dirZ;upX;upY;upZ;_scale;_z_pos_rel;

could easily be added with the "Advanced options" in the object import tab in terrain builder without sacrificing backwards compatibility. It will also make the object import list conform with A3's vectorDirAndUp command!