Hi Shweta,
The value attribute is only a place holder for some field. It can not be editable. For making a field on web UI editable, it has to be associated with some BOL attribute.
It is not just the component-view-context node combination for which you are facing the issue but most of the time it will behave read only.
You can go for AET for adding the attribute to make it editable.
If you can explain your requirement in details, I will be able to provide you most suitable solution.