Well the auto-tagging feature might help… but I am still convinced that keeping track of copies might be usefull (maybe as an option ?)
For the last one:
I see tables auto-detects the drives (for ex c: and d:). Clicking on the drives allows me to browse the content.
I tag a file "a.xls" on the C: drive as "Invoice" and if I tag a file "b.xls" on the drive as "Invoice" as well.
If I want to retrive this file I can use tables and look for the "invoice" tag. I will then have "c:a.xls" and "d:b.xls"
To have only the a.xls file I tried to combine "Invoice" and the "c:-drive" tag. I then surprisingly got "no files fiound" message…
Hope this explanation makes more sense