  We present a fully automated framework as part of the Sherpa event generator
for the computation of tree-level cross sections in beyond Standard Model
scenarios, making use of model information given in the Universal FeynRules
Output format. Elementary vertices are implemented into C++ code automatically
and provided to the matrix-element generator Comix at runtime. Widths and
branching ratios for unstable particles are computed from the same building
blocks. The corresponding decays are simulated with spin correlations. Parton
showers, QED radiation and hadronization are added by Sherpa, providing a full
simulation of arbitrary BSM processes at the hadron level.
