Changing directions

[RAHAHA]

Wall - The Hive Workshop - A Warcraft III Modding Site

First of all, when I got the wall model, it was only facing one direction. I know it's really a stupid question, but I don't know how to change the direction of the wall. Could I have some fast help please?

 

[RAHAHA]

No one can give me answers up till now? I believe it's an easy question.