[Dx4win] MULTIPLE_QSO_OPERATIONS

[George]

I am trying to populate the "upload date" window with a multiple QSO operation for specific searched QSO's but each time I try DX4WIN doesn't populate this window??? 
I was able to set the "upload flag" to Y for these QSO's but would like to populate this upload date en mass as well. Why can't I set the date in the upload date window with a multiple QSO operation?? What am I doing wrong?
Thanks
George  W2YJ