I have been trying to find a way to put a diagonal strikethrough over a number or expression (as in cancelling fractions) within the Equation Editor of Word 2007.

On another site I found this solution:
1. Open an equation.
2. Open Accent menu and select Boxed formulas.
3. Right-click on the placeholder, select Border property, and remove one by one each side of the border; finally insert the desired strike through, from the same menu.
4. Select the template you have built and save it as a new equation.
Now you have a new template you can use with any expression.
You can place your new equation/template in any part of the equation. It fits to the dimensions of the content. You've got to place the template before typing your expression.

I have followed this process as far as Step 4, but I cannot see how to re-use the saved template.

I have been able to use this method to achieve what I want but it involves using Step 3 repeatedly at each place in the equation where I want the cancellation mark to appear. The process would clearly be quicker if I could apply the template as indicated above.

Any suggestions, please?

Robert