When you click on an entry in the Matadata Injection step, in order to assign a field to a setting, a pop up window appear.
Then I can select any of those fields and the match will be created.
But, if by mistake I select a setting that I have already assigned, if I click cancel or I close the pop up window, then my "match" will be deleted.
I then have to reassign my field again.
It would be great if there was another button -> delete.
Therefore in my pop up window I have the choice between:
OK - assign the field to chosen setting
Cancel - close window
Delete - delete the existing match/assignment
Thanks and I hope my explanation is clear!