Limiting number of times promo code can be used

Need a refresher on limiting promo code usage! We have a group for whom we're setting up a comp promo code, which we want to limit to 1 ticket per order and a maximum of 100 comps given away. I know how to limit the number per order in Offers, but how do we limit the total number of tickets that can be purchased with the promo code? I suspect Pricing Rules are the solution, but I'm not seeing what I'm looking for in the Rule Recipes. 

Parents Reply Children