How do I change the order of my tabs?

I have a number of tabs open - I am working on a number of manuscripts - a set of Sonatas one in each tab. I get the idea for one, but want to keep them in numbered order - but may start them in a different order - so how do I move one tab into a different order so i can keep them in a numbered order - (making them easier to find?) How about when you click on a tab holding down Control or Alt - you can move a tab to re-order the tabs?