I opened a poll but I think that it is better to ask "directly" to the developer...
I noticed that the TAG Input Mask occupies about 1/4 of my screen but you utilized just the third part of that column.
As I wrote in the poll I had some duplicated files (same title) and to check which one to keep (based on length, bitrate, file size, etc) I had to check the properties using the contest menu on each file.
It would be great (from my point of view) if you can utilize that "blank" part of the "TAG Input Mask" (or even to split it) to show some useful information about the selected file or files.
Thanks for this great utility,