The places manager allows you to create the various practices in your scenarios - GP practices, opticians, vetinary practices, pharmacies. Each place can have a number of people associated with them, and this data is then used to populate the Rx in your tests.
click the add button to create a new place
To make changes to the data associated with a place:
In order for the system to know which people 'work' in a particular place, you need to assign people to the place.
The person will then be associated with that place, and appear on Rx in your tests.