In the My Clients list, you can see the Client ‘Location’ field - this is an editable field - and the instructions to access this are included below.
The editable 'Location' field is available via ‘Project Enquiry Specification’ button within the Client Overview / Build section.
You just need to click on this button, select EDIT in the ‘Project Enquiry Specification’ pop-up, update the 'Location' field, and finally click SAVE.