[KimDaBa] feature req: apply last token set

[Robert Story]

I find that when I'm adding tokens to a set of pictures, it is frequently the
case that the tokens I want to apply to a picture are exactly (or close to)
the same tokens I set for the last picture. So a single character (maybe '/'
or some other non-token character) to duplicate the previous pictures tokens
would be a wonderful time-saver.