Predefined Options for Dropdowns

Is there any way to set up a customized Predefined Options list with a connected Calculation Value on a dropdown list? We use this functionality to autopopulate an email address based on a selected option, and I currently have to update 50+ forms whenever we have to add a new option to the dropdown. The attached form shows you what I mean with the "Institution" dropdown and "Reports Email" field. 

I apologize in advance for the confusion I have from your question if any but when you mention "Is there any way to set up a customized Predefined Options list with a connected Calculation Value on a dropdown list?" do you mean you want to try to set up an existing list containing the dropdown emails to use later such as across multiple forms from that one that could be used again and again? 

So for for instance you want Form 1 with a dropdown containing the list and you want to update that continually to reuse or populate to Form 2, Form 3, Form 4 and 5, etc, correct?

Please confirm or correct me in case I am misunderstanding you.

Yes, that's what I mean. Similar to how you can preselect "US States", "Timezones", "Months", etc. 

Currently, the only two ways I can think of this working is -

(A:) Manually via the form as you're already doing even though that's obviously the long way.

or

(B:) Alternatively host a masterlist one one form to populate to the rest of your forms and just update that masterlist on the one form that would then share with the rest of your forms it's pulling the data from.

See: https://www.jotform.com/help/351-How-to-Automatically-Pass-Form-Data-to-Another-Form 

But, the downside in doing so is that you'd still have to set up additional conditions to select anything else beyond within those forms to tell it what to do with them.