Greetings. I know that this has already been brought up many times. But would it probably be a compact solution to put a special value that changes the filled data to null? As here https://mix-n-match.toolforge.org/#/entry/41686689 I first added a value to the wrong property (inception instead of start time) and then tried to change it to 0, but it only got duplicated. And now if someone tries to create a Qitem from MnM, this junk data is also being added on WD. So it would be nice to set some value that could clear all data in the listed property when importing, something like %NULL%.