Edit

All Edit operations work on the graphical displays of either lpc or pitch analysis files.

Cut

Cut saves the current selection in a buffer for later use by Insert.  It removes the data from the currently opened file and redraws and rescales the plot accordingly.

Copy

Copy saves the current selection into a buffer for later use, but does not remove it from the plot.

Insert

Insert  takes the saved buffer from Copy or Cut (if one exists) and inserts it at the current cursor location.  It is the users responsibility to make sure the number of poles and other parameters are compatible.  The data is added to the actual data of the file and the plot is redrawn and scaled accordingly.  A selection can be pasted into a new, empty plot.  This is basically the only way to add data to a new plot.

Undo

Undo restores only the last change made to a plot.  Each plot window has its own undo.  Cut and Insert are currently not undoable. 

Select All

This sets the current selection to be the entire document.  The current state of the cursor is not affected, so if the cursor was set for hairline before the Select All, it will remain so.