Using DrawCommandHandler LocalStorageCommandHandler

I would like to use the LocalStorageCommandHandler, but then I loose the functionality of DrawCommandHandler.

How can I use the functionality of DrawCommandHandler and LocalStorageCommandHandler simultaneous?

Both inherit from go.CommandHandler.
Is it possible LocalStorageCommandHandler could inherit from DrawCommandHandler?

Yes, you could make those changes in your code. Or you could define your own CommandHandler that includes all of the methods and state that you want, and none of the code that you don’t want.