EDDer: Estimated Delivery Date

It is working as claimed. The feature and placement is the best (to me) among all similar apps. Can I ask for 3 features? 1. Have a separate date for warehouse: Mon to Fri & courier service (Mon to Sat) as we outsource our shipping.
2. Able to add public holiday where nobody is working.
3. Hide it for certain product such as gift card as we don't track inventory and it's a virtual product. It will be more than a 5-start if these 3 features are added in.