Ability to add multiple add-ons/variants to one service. Add-ons have different pricing and extends the duration of the appointment.

You currently have to add individual events for each service which is a lot of different combinations when you have 20+ services and 10+ add-ons.

This option is pretty common in the beauty industry.

ex. customer books a facial and add-on extractions and eye mask to service OR customer books a hair cut and add-ons a gloss + hair treatment.

There are currently no Shopify POS compatible booking apps that offer this feature so it presents a significant gap in the market.