We have several local vendors that are open throughout the week, but they only make deliveries on specific days - for example, they only deliver on Friday's. When creating a vendor calendar, the only option is to specify their working days. If you set this to Friday's only, the lead time will assume the vendor only works 1 day a week. So, a lead time of 15-days turns into 15 weeks. We would like the ability to specify vendor delivery days so a 15-day lead time would set the delivery date to the next Friday after 15 working days (about 3 weeks).