DATA_ORDER, you can change it only when also using the mode option, see help file.
POLARITY and PHASE you can change with the MODE option, see help file.
CLOCKRATE you can change a sort of with the SPEED option, see help file.
http://avrhelp.mcselec.com/config_spi.htm
Don't know for what you need it, but SHIFTIN and SHIFTOUT can also be an option.
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