I want to change some of the characters respectively
where error
app.findGrepPreferences = app.changeGrepPreferences = null;
app.changeGrepPreferences.appliedFont = "Symbol";
app.findGrepPreferences.findWhat = {"α", "é", "β"};
app.changeGrepPreferences.changeTo = {"à", "é", "á"};
app.changeGrepPreferences.appliedCharacterStyle = myChar1;
app.activeDocument.changeGrep();
app.findGrepPreferences = app.changeGrepPreferences = null;
