How to update the 3D model in Speckle

Objective: I have imported the 3D model into Speckle, but I have modified it in Revit later.
Issue: I wonder how to update this model synchronously in Speckle ?

Each change in the Revit model will be represented in Speckle on each Send/Publish. There is no facility to synchronise every action, just on send.

However, only changed elements are sent to the server when you do send them. Everything you select for sending will be processed, and anything unchanged will use a reference to the existing object int he database.