As in, to double successes? There is not, at least not in any simple way, because there's no part of the dice syntax that can double successes on a 10. The closest you can get is to have a separate roll with a Target Number of 10, which gives the same average results, but decreases the roll variance. (There's also ways to do it through the API or roll tables, both of which would require fairly massive changes in the character sheet to make them work with it). On the whole, just visually counting the number of 10s was always the easiest option for me when playing V20.