Attached Link: http://www.renderosity.com/mod/forumpro/showthread.php?message_id=3475981

It's possible to choose the angle, that's not the problem. See in the link above a thread where I proposed a method for this. In the case of that thread, it was necessary a rotation in all axes but in your case (houses and similar stuff), the vertical axe is enough.

That's not the tough issue. The tough issue is to make the houses (or other objects) face a direction that changes along the way, like houses in a winding road. This is what I don't know how to do.