It would be useful to be able to edit interactively each column of a files data contents as though it were a spreadsheet. The property sheet does not contain all the fields and is awkward to have to pull up for each file. This feature would be especially useful in building a music library (MP3 Format) in which each column would represent a potential key. Additionally, it would be helpful if each columns edit capability could be turned on/off to expedite tabbing across the cells and to lock particular columns. Thanks ....