How can I unlock or lock a custom Simulink block library from the MATLAB command prompt?

I would like to write a function which unlocks my custom Simulink block library, makes some changes and then locks the library again. I would then like for those changes to propagate through models that reference blocks from the library.

Answer 1

[MathWorks Support Team]

This can be accomplished using the SET_PARAM function as follows from a MATLAB script or from the MATLAB command window:

set_param('your_library_name','Lock','off')

You can lock the library by setting this property to on:

set_param('your_library_name', 'Lock', 'on')