To install this widget extract the contents of the zip file to your EB\client\your-extensions\widgets.
So once you extract the whole path would look like: \client\your-extensions\widgets\print. Refresh your client and server windows (easiest way is to close both and 'npm start' them like you normally do to start EB).
Next open the config.json and make your edits. Now the print widget will appear in your apps widget menu. Add the widget to your app. Now use the widgets settings panel to configure the widget.
Enjoy, Robert
Download Print.zip
Unzip the file
Examine the contents of the Print Folder
C:\Users\David.das\Downloads\print\
Explore the Print Folder
The contents of Download Robert’s Print Widget EB 1.6.0
