This is often a very confusing task for most people, including myself in the beginning.
Using this simple step, it would however be easy to find out whether the TO is used or not.
1. Set to list view from web menu.
2. Now select the Storage folder where Templavoila Templates are Stored.
3. Enable the Clipboard, and make sure clipboard 2 is selected.
4. Now can see some numbers at the extreme right side of each, these numbers indicate the number of times the TO is being used.
Move the Mouse over the numbers, and you can even see the uid of a few of them.