Thanks for your quick reply,
Currently, I created new iDevices by adding new exampleblock.py and exampleidevice.py file following to the current iDevices. I edited renderEdit, renderPreview, renderView method and add some new methods to element.py to render content what I want.
I’m making stuck at adding new function to check result of student test. Like showFeedback js function in common.js, I really want to implement the new function like that for my new question type idevice.
May be I will change to use adding new js file in /scripts/idevices/ like what you said.
Thanks!