Set default Customer Location

Hello everybody,
in our agricultural coop, we’re using a number of distinct “customer locations”, placed under default customer location, to attribute parties to our various delivery stations.

Now I found, that whenever I create a new party, it’s customer location is set to some random customer location, and not to default customer location. I could not find a control to set default customer location. Where do I set default customer location?
Note: We’re still at Tryton 7.0 here; AFAIK, quite some changes have been made since than.

Thanks and greetings… (:

The default location used is the location “Customer” created at installation.
As standard, there is no way for the user to customize it.