The easy way to create powerful booking forms for WordPress websites.
The default behavior of the plugin is to have the quantity selection starting at 1. If you need to require a more explicit selection of the quantity then a solution is to set the default quantity to 0 making the user select a quantity before selecting a time-slot in the calendar.
For setting the default quantity to 0 you can paste the following custom script in the "General Settings >> Edit Scripts" area of the plugin:
Feedback about these features will be welcome, feel free to open a support ticket for any question.