Written by cslee-ubuntu the 8 Aug 10 at 13:34.
Not an idea
In the file properties dialogue there are a few tabs and only some of the data is editable.
Specifically in the Document or Image etc. tabs in the dialogue there are fields like the tags field that one would expect could be edited in place.
Written by cslee-ubuntu the 28 Jul 10 at 20:44.
New
When in the command line I have various powerful text manipulation tools that make text file work easy.
In the GUI I can copy paste and edit and most GUI editors require that I do the heavy lifting.