Version 2020.1 of the simulation software alaska/ModellerStudio has been released. In addition to a number of detailed improvements in the definition of simulation models, interactive work with the software and linear system analysis, two new add-on programs are provided. The EigenmodeAnalyzer is used to display results of linear system analyses in Campbell diagrams. The program alaskaFEBody is used for the automated test of simulation models for flexible bodies, primarily for rotor blades of wind turbines.