Hi Pilou - no not currently, as you can see in this post here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=1982.11

it is actually a special part of the Image command that you activate by pushing the new "Align" button in the Image options panel.

It isn't activated by doing anything on the edit frame, it is a totally separate thing from that.

I do want to add an additional kind of align/orient tool for objects as well though, but again it will likely be a new transform command and a separate thing from the edit frame.

- Michael