How do I create and use custom model from .ssc file?

Hi,

I'm trying to create a customized vccs.

• Matlab version R2016b (9.1.0.441655)
• I copied the code from Simscape - Foundation Library - Electrical Sources - VCCS
• In the matlab editor i pasted the code and made changes. I could not save with extension .ssc so i saved with .m.
• In the computer finder window i changed the name to ..../MATLAB/+MyPackage/+MyVCCSv1/MyVCCSv1.ssc without error.
• Now i can open, edit and save the file MyVCCSv1.ssc without errors.
• From the directory ..../MATLAB/+MyPackage/+MyVCCSv1/ i ran ssc_build without errors.
• Now there is a folder sscprj added to .../+MyVCCSv1 directory.

So far so good. Now I'm stuck. I have a simscape model where i used the original foundation library block and i'd like to replace it with the custom version. How do i create a symbol from the .ssc file? How do i find and instantiate the symbol into the the simscape model?

Thanks in advance,

Susan