Found a kind of Hack. It works if i SUCCESSFULLY click on a background object or the main character, not the trigger widget (that really should be a miss in my logic.).

OR is there supposed to be some logical node added to do this separately?

I think I don't know what does it mean "export to engine"…
In apps_dev, I make python3 project.py -p myproject compile

And I use .html in deploy/apps

Isn't it enough to "export to the engine" ?

var obj = b4w.scenes.get_object_by_name("obj_name");
obj.render.selectable

Is the API method the only way to create a click drag action to rotate objects like in the "Experience Curiosity" app or can it be done with the logic nodes?

Also if its not available will it make it into an upcoming release?

is there a way to do this same thing using logic nodes?

I tried to get object inside mouse x and y coordinates
but it gives null value not the object, what can be the reson ?