mmh… I see. I tried yesterday this way, and it solve my problem. But… I found this method, and indeed Premiere Pro philosophy, a bit muddled: things/actions than can be achieved in FCP with just 2-3 mouse clicks, or even faster with keyboard shortcuts (moreover without modifying a clip), need in PP more time/clicks to get the same result. Of course, imho… just a FCP 7 > Premiere Pro switcher.
Thx again for your reply.