This was tough when I started doing it today. It is possible via feature using a CustomAction element in the elements.xml and some code. I tried a no-code solution but it was not possible.
Title="Publishing SiteActions Menu Customization"
ControlAssembly="Your Assembly full name" ControlClass="your class full name">
Following code would go in class:
public class YourClassName : WebControl
protected override void OnLoad(EventArgs e)
var siteActions = ToolBarMenuButton.GetMenuControl(this);
siteActions.MenuControl.PreRender += (o, args) =>
var targetMenu = siteActions.GetMenuItem("MenuItem_CreateSite");
if (targetMenu == null) return;
The scope of your feature would be "site". Also, don't forget to put SafeControl entry for your class in the web.config or it may not work.