>> Listermode with "Source" and "Destination" label as in Dopus Magellan
> Um, why? That only makes sense if you only have 2 listers so that there's > a clear source and destination context
DOpus Magellan introduced the ability to have more than 2 listers, and kept the need to define source and destination lister at that. After all, if one lister is the source, which of the other two is the destination otherwise? Note that this was essentially pre-copy-via-d&d days (most DOpus users used d&d for dearchiving archive files, not for copying them).