Abstract: In this paper we explore how to support teacher educators to author their own digital clinical simulations to prepare K-12 pre-service computer science teachers. Teacher educators have the potential to create simulations about relevant content for their teacher preparation programs and contextualize those simulations for their students. To benefit from this unique perspective, we support teacher educators in authoring simulations. We consider the relationship between authoring simulations and digital storytelling to inform our authoring tools and supports. In this study, we report results on what kinds of supports are needed for authoring simulations based on a co-design workshop with 12 teacher educators from nine U.S. states across all regions of the country. We examine how these authors set context, select content, and engage in the simulation authoring process to gain insight into supporting teacher educators as digital storytellers