How do u modify an existing Value without Being Forced to Delete then Add The Modification Back?

[amiga-500]

So here is how i create my choices...

    keywordChoices = new Choices(document.getElementById('keywords'), {
        delimiter: ',',
        editItems: true,
        maxItemCount: -1,
        duplicateItemsAllowed: false,
        removeItemButton: true,
        shouldSortItems: true,
        sorter: function(a, b) {
            return a.label.toLowerCase().localeCompare(b.label.toLowerCase());
        },
        allowHTML: true,
        placeholderValue: 'Type a keyword or phrase.',
        items: keywordsArray
    });

But once i set items how do i modify existing ones?

Currently i am forced to do the following where i delete the key then i read it with a modified value/label:

keywordChoices.removeActiveItemsByValue(key);
 keywordChoices.setValue([{value: key, label: key}]);

Seems horribly inefficient. Surely, there has to be a way to udpate an existing value more easily.