Keep Out of Stock Variation Enabled

I have a waitlist when a person does the dropdown to an out of stock item. But, this plugin disables any Variation that is out of stock, so the button can’t be clicked (unlike the default dropdown) and we cannot show the waitlist option.

Is there a way to tell the plugin to NOT disable the ability to click on a variation? I want the variation still clickable and showing enabled, even when out of stock.

Cheers!
Ryan