Voor elke stap
	=> Via aangepaste kolom een kolom toevoegen
	=> formule
	=> nadien de reeds bestaande kolom verwijderen
	=> titel van kolom aanpassen

Is huidig jaar 
	if Date.Year([Datum]) = Date.Year(DateTime.LocalNow()) then "Ja" else "Nee"

Is huidige maand
	if Date.StartOfMonth([Datum]) = Date.StartOfMonth(DateTime.LocalNow()) then "Ja" else "Nee"

Is huidig kwartaal
	if Date.Year([Datum]) = Date.Year(DateTime.LocalNow()) and Date.QuarterOfYear([Datum]) = Date.QuarterOfYear(DateTime.LocalNow()) then "Ja" else "Nee"

Is vandaag
	if Date.From([Datum]) = Date.From(DateTime.LocalNow()) then "Ja" else "Nee"

Is huidig kwartaal
	if Date.Year(Date.From([Datum])) = Date.Year(DateTime.LocalNow()) and Date.QuarterOfYear(Date.From([Datum])) = Date.QuarterOfYear(Date.From(DateTime.LocalNow())) then "Ja" else "Nee"

Is huidige week
	if Date.Year(Date.From([Datum])) = Date.Year(DateTime.LocalNow()) and Date.WeekOfYear(Date.From([Datum])) = Date.WeekOfYear(Date.From(DateTime.LocalNow())) then "Ja" else "Nee"

Is volgende week
	if Date.StartOfWeek(Date.From([Datum]), Day.Monday) = Date.AddDays(Date.StartOfWeek(Date.From(DateTime.LocalNow()), Day.Monday), 7) then "Ja" else "Nee"

Is vorige week
	if Date.StartOfWeek(Date.From([Datum]), Day.Monday) = Date.AddDays(Date.StartOfWeek(Date.From(DateTime.LocalNow()), Day.Monday), -7) then "Ja" else "Nee"

Jaren geleden
	Date.Year(DateTime.LocalNow()) - Date.Year(Date.From([Datum]))

Maanden geleden
	let
	    vandaag = Date.From(DateTime.LocalNow()),
	    datum = Date.From([Datum]),
	    maanden = (Date.Year(vandaag) - Date.Year(datum)) * 12 + (Date.Month(vandaag) - Date.Month(datum)),
	    correctie = if Date.AddMonths(datum, maanden) > vandaag then 1 else 0
	in
	    maanden - correctie

Weken geleden
	let
	    vandaag = Date.StartOfWeek(Date.From(DateTime.LocalNow()), Day.Monday),
	    datum = Date.StartOfWeek(Date.From([Datum]), Day.Monday)
	in
	    Duration.Days(vandaag - datum) / 7

Dagen geleden
	Duration.Days(Date.From(DateTime.LocalNow()) - Date.From([Datum]))