This hook is used to add new tool tabs to spawnmenu.
Example
Add a new tab and a few categories into it.
hook.Add( "AddToolMenuTabs", "myHookClass", function()
spawnmenu.AddToolTab("myTab", "My Tab", "icon16/shield.png") -- Add a new tabspawnmenu.AddToolCategory("myTab", "myCategory", "My Category") -- Add a category into that new tabspawnmenu.AddToolMenuOption( "myTab", "myCategory", "myEntry", "My Entry", "", "", function( panel )
panel:AddControl( "Header", { Text ="Hello!"} )
end ) -- Add an entry to our new categoryend)