If I undertand question one correctly what you are saying is after an item is archived you want to change the shortcut options on the message stub. My undertanding is that this cannot be done for
existing archived items changed under previous settings. If they are recalled and re-archived this should work I believe.
With regards the next question the previous contributer is correct. EVPM is the answer, however this is not run from the Evault Console as per the utils guide.
days/weeks/months/years or by Quota are the two options availble. FSAUtility is for File System archiving only not for mailbox archiving. Event when using File System archiving this utility is not used to specify this information. I believe this is set (in version 7.0 and above) on the FSA Archiving Task.