Thanx for your help Brandtrock.
I looked through the data, and it seems the pivot table is not correct in the totals field.
i.e. for station 16.08.01 it should be 20 days, not 13
Also, regarding the new formatting, looks simple enough to do, however I have over 6000 entries for which i'd have to apply this new formatting to.
I am thus thinking maybe it should be somehow done by formulas? To simply this process, I am now only looking for summarys by workstation.
So ideally, for each workstation, I would be able to look at how many days it was used.