Doctor Shortcode

Hello,
Please refer to this link: https://wordpress.iqonic.design/docs/product/kivicare/widgets/book-appointment-widget/

Thank You

i am using the classic editor at the moment, how can i use the widget options in the classic editor

Finally i am looking to use the AVADA theme, kindly confirm is the plugin working fine with the AVADA theme?

also i wanted to show a 1 doctor on 1st page and 2 doctors on 2nd page, when i use the widget options and select 1 doctor per page it will show 2, i am looking to get this solution approved from the Client to start working on the project and i have recommend this plugin to Client, so it will be good if you can provide me detail help in this regard