XuanXuanGo enables the user to input any marks at will. For
single alphabetic marks or sequential numeric marks, the program
will increase the mark for the next input automatically. For any
other marks, such as long string marks or repeated alphabetic
letters, the program provided a dialog box to specify the mark
string. After setting the mark string, the
mouse cursor will become "Abc", click at the position where you want
the mark to appear.
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