Hello.
1) If you are using at the Booking > Settings > Fields page at the "Form fields" form
the cost hints similar to this:
[cost_hint] - total cost<br/> [deposit_hint] - deposit cost<br/> [balance_hint] - balance cost<br/>
Then at the "Content of booking fields data" form (at the same page) you need to use this shortcodes:
<strong>Total cost</strong>:<span class="fieldvalue">[cost_hint]</span><br/> <strong>Deposit cost</strong>:<span class="fieldvalue">[deposit_hint]</span><br/> <strong>Balance cost</strong>:<span class="fieldvalue">[balance_hint]</span><br/>
2) You will see the balance cost and deposit cost at the mouseover tooltip in the "Calendar Overview" page only for the new bookings.
Its means, that you firstly, need to make customization from point #1 at the Booking > Settings > Fields page. And then make some new bookings, and you will see balance and deposit hints for these new bookings at the Calendar Overview page. Old bookings, will not have this info, because these bookings was saved to DB before you was making changes at the Booking > Settings > Fields page.
3) During exporting to the CSV file do not possible to control the fields. System is exporting all form fields, which is available for the specific booking(s).
And here balance hint and deposit hint data you will see in the same way, as in description of point #2 (only for the new bookings).
Kind Regards.

Hello.
Please send screenshot of your cost configuration (from the Booking > Resources > Advanced cost page) to the support @ wpbookingcalendar.com.

Also please send link to the page with booking form, where you are having this issue.
Kind Regards.

Hello.
Unfotunately, its does not possible to make such configuration in a simple way.
If you want to "go deep" and check how the search availability form is creating, so you can check it inside of the ../{Booking Calendar Folder}/inc/biz_l.php file inside of function wpdev_get_booking_search_form($search_form, $attr).

Please note, if you will modify the source code of the Booking Calendar, we will not guaranteed the correct work of plugin and do not support it.

Kind Regards.

Hello.
1) Please recheck firstly that you activated and using "single day" selection mode. Its at the General Booking Settings page in Calendar section.

2) If you are using the conditional logic for showing different timeslots for the different weekday, relative to this instruction: https://wpbookingcalendar.com/help/different-time-slots-selections-for-different-days/
Then system check whether to show fully booked day or partially booked date based on timeslots, which you are listed at this default section:
[condition name="weekday-condition" type="weekday" value="*"] Default: [select rangetime "10:00 - 11:00" "11:00 - 12:00" "12:00 - 13:00" "13:00 - 14:00" "14:00 - 15:00" "15:00 - 16:00" "16:00 - 17:00" "17:00 - 18:00"] [/condition]
Its section, which is loading, when no any dates is selected.
Thats why please try to set there as low timeslots as possible, in this case system will check if this timeslot for the specific date is booked and set the date as booked.

3) Partially booked item show clock icon to define the date as partially booked or not. But in the same time, the bookings for these dates can be pending or approved, which can impact to the color of the date. If you need to disable the "partially booked" legend item, you can do this at the General Booking Settings page.
Kind Regards.