Where do you start building an Estimate in Service Autopilot?
From anywhere in SA
+ (Quick Add) > Estimate
From the Estimate List screen
CRM > Estimates
From the Client Account screen
CRM > Clients > (Client Name) > + Add an estimate
From the Lead Account screen
CRM > Leads > (Lead Name) > + Add an estimate
Any of these locations will lead you to the New Estimate overlay. From there you can add and edit the details of the Estimate and save it.