Mavericks: Can I create a second screen with keyboard shortcut like spaces allowed? I upgrade some time ago but need spaces for the first time today. 

At the moment I can use Ctrl+← to get to the widgets pane, but I find I can't  use either Ctrl+→ or Ctrl+[number] to get to another space (let alone create a new one).

I've checked my shortcuts and even under there I've only got the option for Switch to desktop 1.

Where am I going wrong?
Do you actually have other spaces created? Ctrl+← and Ctrl+→ will work if you have spaces. To make a new space bring up Mission Control and hover the mouse in the top right, a + button will appear.