How to sort customers by location with Calendly

Hello,
I have a little glue on the WP Calendly appointment plugin.
Indeed, I would like to be able to group customer appointments together on their location, according to the postal code, in order to avoid traveling too far between each appointment.
(ecology, transport, traffic jams, journeys … we think of the planet;)
The customer would be automatically offered daily slots, according to his CP.

After config of the platform, I do not see this option;
If not with workflows maybe?
Is there a way to do this with Calendly?
Thanks to you, if you had this problem to deal with.
Mike

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