@RS77 ok so you need to access the bcm module this one below click the play button on the forscan (MAIN)
Click on the one highlighted and you will then get this screen
Read this carefully ^^^^
IT may as you to download a file this is ok
Once it has loaded all the modules in this may take over a minute. You will then bee greeted with this screen
Now scroll down to where it says auto locking with speed double click it and this will come up
Select automatic locking then click write in the bottom left the car might reboot wait for it to complete it will it on screen. That’s it done now when you drive over 5mph the locks will engage