You may take a look at the commands part, which is available to define additional commends for the visual, but currently it is only available for Context menu and Options menu.
After download the source code from Github as suggested in this community forum, run the application with ng serve -o and also run the commands
npm install --save-dev @angular/cli@latest but it throws the error like-
Local workspace file ('angular.json') could not be found.
Error: Local workspace file ('angular.json') could not be found.
So, can anyone help me how to run this application