If an error occurs when File Manager attempts to process a panel,
a short text message displays in the upper right corner of the screen.
While this message is displayed, pressing F1 displays the expanded
text of the error message in either a box at the bottom of the screen,
or underneath the command line, dependant upon your setting of the
ISPF option "Long message in pop-up". The following example is shown
with that ISPF option set on.