Mirch answered your question, but I offer this for future reference.

Quote Originally Posted by HolyNirvana666 View Post
not sure if it's a bug or if I'm just not doing it correctly.
When you're not sure if you're using a command correctly, use the ? command. It'll explain the command usage in detail. Try typing the following lines in your chat box.

/? ?
/? macroicon
/? micon