At any time you can click on the Manage Connection button from the main Trev + Figured page to adjust the settings for a farm.
There’s a few things you can change from here and a few things to keep in mind:
Change the farm mapping (i.e. change which Figured farm this farm maps to)
Account Mappings - what Chart of Account codes do sales and purchases map to in Figured
Stock Mappings - what stock classes in Trev map to what stock classes in Figured
Event Mappings - what event types in Trev map to what event types in Figured