How to update a particular value in a Multiple Value Constant ?

Dear Team,

I have multiple text value constant (e.g. cons!Country) where i have 4 values (e.g. India, America, China, Italy), similarly i have the same details in a Database Table. when ever an update is happening in the database table on the Country name, then the same changes should be updated in the constant as well. But the order of the list in constant can't be changed, because it is hard coded in many interface for some validation using the Constant value Index.

I know how to find a particular value in a Constant(Multiple Text Value), but not sure how to update a particular value in a constant.

Please help me with some suggestions for this problem.

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