Okay ive been trying for about three hours now.
Two of them spent on the internet to try to find a way to do this simple task but it seems impossible.
Here it is:
I want to select several objects and move their keyframes at the same time.
I tried doing it with the ipo editor and the nla editor.
In the ipo I cant select more than one object and in the NLA window I cant get any actions trips with connected keyframes since I dont have any actions.