If Uge1!F4 = Rulleplan!D4 AND either Uge1!D4 or Uge1!E4 is blank, it should show blank
If Uge1!F4 = Rulleplan!D4 AND either Uge1!D4 or Uge1!E4 is blank, it should show only the content of Uge1!F4.
If both Uge1!D4 and Uge1!E4 is filled the rest of the code show the content of Uge1!D4 and Uge1!E4 and Uge1!F4