Yaskawa Yasnac PC NC - Manual (Page 76)

YASNAC PC NC Operating Manual Chapter 3: HMI Process Operation
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When moving through a directory tree, it may be desirable to go back up to the parent
directory. The Up One Level button is used to do this. When the current directory is a
top-level directory, this button is disabled.
Fig. 3.2.6.1 The Save As Dialog