How to deselect a reference zone once it is selected?
When a case is newly setup, if one looks under Report->Reference Values
the field for Reference Zone is blank, i.e. no reference zone is selected.
However, after selecting a reference zone once, there is no option in the
panel to deselect it and return to the original state.
Use the following text command. Type it including the brackets
in the TUI:
(rpsetvar 'reference-thread -1)