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step into instrument driver functions during debugging

just wondering is there a way to "step into"  functions on instrrument drivers during debugging?
I am using a Keithley 2701 multimeter. I am trying to get a reading for frequency. I can set the channel to frequency mode but I can't change the range. In the function documentation it says the range can be configured only when in frequency mode, altho I am 100 % sure its in frequency mode as i can get frequency readings.
 
the doc. says it compares two attributes KE2700_ATTR_FUNCTION with KE2700_VAL_FREQ  altho i tried displaying them as int and they appear as different numbers. I can't change those values either. I tried to going to their definitions, but it keeps going thru different VI header files.   
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Instrument->Edit Instrument->(choose matching driver)-> Attach and Edit source and then start to debug your project doesn't work ?
Another option to debug the driver is running NI SPY to see what commands are actually sent by the driver.
 
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