Which mode must you manually click to access when working with an already created property file?

To access an already created property file in Argus Enterprise, you must click on the "Edit property" mode. This mode allows you to make changes to the details and parameters associated with the property file. When you enter this mode, you gain access to all the necessary tools and fields for updating information, such as financial data, property characteristics, and leasing details.

Selecting the "Edit property" mode is essential because it allows users to actively modify the existing data rather than just viewing or checking in the property file. The other modes serve different purposes: viewing is for inspecting the data without altering it, check-in is related to submitting changes made to the property, and locking typically prevents any modifications to the file by others but does not facilitate direct editing by the user. Thus, clicking on "Edit property" is the correct step to make necessary updates to the property file.