Script for Creating Fractions

Hey everyone!

I was just wondering if anyone has come across a script to quickly create fractions from text. My current process is:

- Go to File>Document Setup
- Type tabe: Leave Superscript at 33.3%, Change Subscript to 0%
- Assing keyboard shortcuts to each above
- Instead of a slash, use a solidus as the slash, using Alt+Shift+1

Any help or replies would be greatly appreciated!