Hello David, Thanks for your reply on this topic; I also benefited from this. One question though; isn't there a keyboard shortcut to use it instead of using the menus?

On 04/11/2012 08:13 AM, David L. Johnson wrote: > The problem is that a matrix does not really give you a multi-line > formula, it is a one-line formula including a matrix. To get a > multiline formula, use one of the aligned environments. I prefer the > eqnarray environment. Then you can number each line of the multi-line > environment. I will attach a simply LyX file showing first an > eqnarray environment, then a matrix environment, both numbered, but > the matrix only allows numbering of the whole thing. Another question is regarding fullscreen mode; the math toolbar pops out when I use Ctrl(+Shift)+M & that's useful, but what about the main toolbar? is there a way to bring it out "temporarily" in fullscreen mode? -- Sincerely Yours, -Merhebi, Bob Thunderbird Signature

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