how to edit my message

Hi, I wrote a message on the group,but how can I edit smy already posted messaes?I can not find the edit like on the editor toolbar.

sorry for the spell mistake,I mean: I wrote a message on the group,but how can I edit my already posted messages?I can not find the edit link on the editor's toolbar.

sorry for the spell mistake,I mean: I wrote a message on the group,but how can I edit my already posted messages?I can not find the edit link on the editor's toolbar.

I don't thing you can. Even if you could the group maps to a mailing
list and nothing is going to go and magically change all of those
delivered emails.

Fred