Customise Wordpress Delivery Plugin

Our grocery online website base on wordpress & Woocomemrce platform. Currently we're using two different shipping plugin. I wanted to integrate these plugin as the main shipping plugin do not have a time slot and the second plugin do have a time slot however they are not link to each other. Allow me to explain the plugin usage... WooCommerce Advanced Shipping (WAS) Plugin ------------------------------------------------------------------------------- - Using this main plugin, we are able to set the following condition: 1. For Zone A (SDD) - Base on Postcode Order take place from 00:05 AM - 16:00 PM, are for delivery "Same Day Delivery (SDD)" The charge is depend on Cart Subtotal: Purchase cost RM 50 – delivery cost RM 20 Purchase cost RM 51 to RM 100 – delivery cost RM 15 Purchase cost RM 101 to RM 150 – delivery cost RM 10 Purchase cost RM 151 to RM 199 – delivery cost RM 5 - Purchase RM 200 and above is free shipping. Note: We are able to set this. No issue. 2. For Zone A (NDD) - base on postcode Order take place from 16:01 PM - 23:59 PM, we charge and deliver for "Next Day Delivery (NDD)" The delivery charge is flat rate which is RM10 - Purchase RM 200 and above is free shipping. All this SETUP is done and it base on time of ordering. 3. For Zone B (NDD) - base on postcode The delivery charge is flat rate which is RM20 and ONLY delivery Next Day Delivery. Not eligible for free shipping. Note: All this SETUP is done and it base on time of ordering. However, even though they order during the time period specify and charge accordingly, they are also allow to select time slot if for example they want us to deliver Next day by their choice. However this plugin do not have that function for user to choose the date and time for delivery. So we use another plugin call.. WooCommerce Delivery Slot Plugin ---------------------------------------------------------- We need to set the limit delivery only to 200 deliveries perday so this plugin can lockout the number of delivery. We also need to provide to customer "TIME SLOT" at checkout page. So that they can select date and time when they want use to delivery the product. However this plugin and above plugin is not integrated so if customer choose time slot it did not charge accordingly. Attached is the documentation for both plugin WAS documentation - is attached Delivery Slot plugin documentation [login to view URL] If you think you can integrate this two plugin. Please kindly bid.