Joins can be imported from Block Joins File in the“To prevent offsetting or loss of assigned joins with the haul network, you can export the preassigned joins from the project and re-import them back after you make changes in the scheduler.
For this purpose, use Import/Export Joins button located in the top right corner of the Blocks panel.
...
To export Joins:
Go to the Network tab.
Open the Blocks tab (at the left bottom).
Locate Import/Export Joins button, as shown below.
Select “Export Joints” option.
In the Save As window specify a path relevant
Block Joins File will be saved in “.blockJoins” format.
...
To import Joins:
Go to the Network tab.
Open the Blocks tab (at the left bottom).
Locate Import/Export Joins button, as shown below.
...
...
Select “Import Joints” option.
...
In the Open window select relevant Block Joins File in “.blockJoins” format and press OK.