USB-8452 skew between CS lines

I am using an NI USB-8452 to control a device using a 5 wire SPI using the SPI scripting capability. 

I want to be able to generate a trigger signal on one of the other chip select lines (CS) that occurs at the same time as the rising edge of my CS signal. However, there seems to be a huge amount of skew between CS0 and CS7.  For example, part of the SPI script executes:

fRet += self._lspi.ni845xSpiScriptCSHigh(self._cHdlScr, c.c_uint32(iCSB))
fRet += self._lspi.ni845xSpiScriptCSHigh(self._cHdlScr, c.c_uint32(iTRG))

where iCSB=0 and iTRG=7 (i.e. I want CS0 and CS7 to go high at the same time).

Is there a means to do this with the NI-8452?

Thanks