Navigate to the case.

Click on the dark green dropdown in the top right corner of the case and select Connect Actionstep Casefile.

A pop-up window will appear. Search for the existing Actionstep casefile.

Click Connect.

Another pop-up window will appear to confirm that the user is connecting to the correct Actionstep casefile. Select Confirm.

The Actionstep casefile number will now show in the case index.