Hi Etinne, I know you won't exactly love this solution, but it does work. You can remove the extra space again simply by entering a spacer with a user value with a negative in front. eg -1 em. This removes the text up a line again.
You have to give LyX more of a chance. Writing in LaTeX requires some fiddling too and most problems you can get around with LyX. You just need to find new ways sometimes. There are so many advantages to writing in LyX when you get to know it. I'd never go back! Chris.
