Choose save from the file menu or choose the open dictionary tool option from the file menu. The sdtudc_register tool panel appears.
Input the PinYin in the reading column.
The only the valid PinYin can be registered to NewPinyin input method.
Click Confirm button
The following dialog box appears.
The UDC and its PinYin will be registered in /var/tmp/newpyudc.txt. Click OK in the dialog to confirm