There is no out-of-the-box method that will do this automatically.
However through writing various MATLAB scripts and using methods such as get_param, set_param, add_block, add_line, along with other model building functions from the MAPLAB-Simulink API it can be successfully done.
Look at the doc for how to use the above functions. There's a simple example of building a model (showing how to add and connect blocks) here.