Merge data from duplicate QSOs

Instead of ignoring duplicate QSOs, please allow merging of data from the original and new sources. Example: QSOs imported from LoTW are sometimes missing grid squares - it would be helpful if I could bulk update the missing grid squares by pulling in my local adi file.

@AC8CI i will talk to the team about this and add this as a feature request for discussion.

Thanks & 73
Brad K4AZE