setInstrSettings(x, instr.settings)getInstrDesc,
getInstrSettings,
getWhatMeasured,
getWhenMeasured,
getWhereMeasured,
isValidInstrDesc,
isValidInstrSettings,
setInstrDesc,
setWhatMeasured,
setWhenMeasured,
setWhereMeasured,
trimInstrDesc,
trimInstrSettings