You are able to merge documents and create XLS outputs from the practice.
These documents are output to a practice folder.
You should set the practice document folder to an accessible network path where you want practice documents. Each practice could have, for example:
\\My Practice Documents\Brisbane
\\My Practice Documents\Melbourne
\\My Practice Documents\HongKong
Enter the document folder into the Practice settings, from the Practice menu > Practice Settings
The output documents appear on the Practice Documents tab: