You can switch between viewing
all test elements in the test editor and viewing only elements related
to data correlation in the test editor. Viewing only data correlation
elements makes it easier to add and remove substitutions.
What to do next
To view all test elements, click again.
Note: If you select a test element while viewing
all test contents, and then switch to viewing only data correlation
elements, then the corresponding substituters and datapool candidates
are selected. For example, if you select an HTTP page in the test
editor, and then switch to viewing only data correlation elements,
then all substituters and datapool candidates for all requests from
the HTTP page are selected.