Working together with MeshSyncDCCPlugins, MeshSync is a package for synchronizing meshes/models editing in DCC tools into Unity in real time. This allows developers to immediately see how things will look in-game while modelling.
Please refer to the installation page to install MeshSync package.
From the GameObject menu, choose MeshSync > Create Server to create a server object.
This object has MeshSyncServer component that handles the sync process.