Coupons Mass Actions

-- HikaShop version -- : 3.1.1
-- Joomla version -- : 3.7.2
-- PHP version -- : 7.0.18
-- Browser(s) name and version -- : Chrome

Is there a way to change coupons with mass actions? I need to change the product tax category for a lot of coupons. If this isn't possible should I just edit the database manually.

Thanks!