Custom Simscape/Simulink Library

Hello,

How can I make a custom library populated with Simscape foundational blocks, user defined Simscape blocks, user defined subsystems, and Simulink blocks (such as the scope)?

Currently, I can add all of the above to a custom library, but if I add another custom block and rebuild with ssc_build, the simulink blocks disappear and must be added by dragging again. I would like to build a custom library with all necessary components to send to other users.

All computers using the model and library have MATLAB2015a and relevant Toolboxes installed.

Thanks for the help! -Ryan