word training+london - Insert a table

Hi,

I attended a word course on Friday and one of the toolbars had a button on it to insert a table whereby you simply clicked on the button and you could highlight how many rows and columns you wanted to insert and it would come up straight away. I have found the button, or what looks to be the button except when I click on it I have to type in the number of rows and columns rather than just dragging my mouse over the boxes. Can I change this?

Thanks!