Hi Jon,
Thanks for the response.
I am referring to the 'Web Analytics' property of deliveries which MUST have the data connector assigned to it for the Web analytics to track the depositions like click, open.
I have pasted a screenshot below to depict where the Web analytics external account need to be selected.
Now, I need to do it for hundreds of recurring campaigns which is a lengthy tasks. I am looking for an automatic way (may be using JS or Input Forms etc.) to update this value to all the deliveries.

Thanks again
Naveen