"time since upload" column in gtk interface?

[ForeignerinPhils]

Presumably, as time_since_download and time_since_upload have been available for more than a year, it would be possible, for someone with plugin-writing skills, to create a plugin which would add these values as new columns in the gtk interface?

Has anyone had a go at this, or is there anyone who would wish to produce such a plugin for the benefit of the community?

I haven't been deleting any torrents, but my list is becoming unmanageable - being able to identify those which have been dormant longest would be extremely useful.