the instruction for the employment record submission in e-APR says "You must create a separate file for each period of employment." does it mean that I cannot have the same letter from the same employer listing all the periods together (i.e. submitting identical letter for all the slots), but I have to get separate letters from the same employer only referring to each of the periods? The reason I have three different periods of employment is because I had a different job title for some of my employment period, even though that falls under the NOC.