group annotation displayed on sequence ID

Sequence groupings could be highlighted on sequence ID:
e.g.
 * write name of group adjacent to each sequence.
 * give position of sequence in each group.


See danhitchcock@neo.tamu.edu :

> 5. Allow editting multiple names at once in a sequence. I have a list of GI numbers and their aligned sequences in Jalview and to some gorups i would like to add "1-" or "2-" to all of the seuqneces selected. This could be great for keeping track of which group of sequences are in a group. Ideally the Muscle scoring should keep the groups together but I would prefer to just look at the number.
I may come back to you on this. There's a slight difference between editing sequence names (which I agree calls for some kind of search/replace box with regex capability), and jalview adding additional annotation to the sequence label (like it's position within a sequence group).