Most of the labour happens before the coating
Decontamination and correction are the hours. Quoting the coating and absorbing the prep is how shops lose money on their best-paying service.

Ceramic coating
A coating is mostly preparation, takes the car off the road for days, and comes with a promise that outlives the invoice. That is three things a generic calendar cannot hold.

What the work actually involves
Decontamination and correction are the hours. Quoting the coating and absorbing the prep is how shops lose money on their best-paying service.
A multi-day job blocks capacity differently from a wash. The schedule has to show that honestly or you will double-book yourself.
Maintenance intervals, aftercare and the coating applied all need to be findable in two years, by someone who is not you.
In ManePilot

Questions
Yes. Services and add-ons carry onto a single estimate, so the customer sees the prep and the coating priced clearly rather than as one opaque figure.
Service history sits on the vehicle, so the last coating and the last maintenance visit are both visible when the customer returns.
Related
Set up your services once, and the schedule, booking page and invoices all work from them.