The task is simple:
what i'm trying to do from the datasheet is to subtract the time difference of Widget ID=='Post' and Event='mousend' with Widget ID='Post' with Event=='mouseenter'.
So if you look at the datasheet. I want to subtract row 5 with row 2 in terms of time difference based on time stamp and create a separate column as time difference in ms and record it and this continues until completion of the datasheet. Also please make sure it is applicable for any other same datasheet.
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