The New file operation is missing in Ubuntu 13.04. How can I fix it?

I have only "New Folder".
How can I add the New File option again?
The New file operation is missing in Ubuntu 13.04. How can I fix it?

I have only "New Folder".
How can I add the New File option again?
The solution is to add files in ~/Templates directory. For example adding an empty file named Text.txt the New Document option is added.

So we can add there files with different extensions to view them into New Document option.
cd ~/Templates
touch Text.txt