Help with Woocommerce Bookings date selector & discounts!

We currently have woocommerce bookings operating with a custom block selector 4 days and 8 days, we need the calendar to actually show the dates selected rather than just the first.

We also need a discount to apply to either 50% off the last 4 days of a 8 day block with the first 4 being the base price or 25% off the whole price if 8 days is selected.

Pretty simple job for anyone familiar with the plugin. Im freely available and would prefer this to do done this evening if you are from the UK it is also preferred.