Not possible. However, as already said in several topics, you can access your 'other speed dials' in the bookmarks page. You can even copy them to the current Speed Dial.

. I agree, Opera desperately needs a button to force a manual sync in situations like this. There is a delay in syncing between android and pc with me most of the time but, it does have current sync data when it does sync. Resetting sync will erase everything so I don't think that's what you'd want to do. I would just keep trying logging in and out and hope for the best. It sometimes makes me log out and back on several times before it'll sync anything. It's a pain when that happens, but sync does eventually work.