Hi everyone, I am experimenting at the moment to find a comfortable way to judge whether I am in the Z-maximum of a 3D peak. My Current approach is to pick a peak where I think it should go and then navigate to that position in another window that shows the same spectrum in an orthogonal view. Then I subsequently move or delete that peak. However, this approach is very cumbersome and it would be nice if there was a quick way to judge whether the peak should be picked in that position in the first place. Do you think it would be a good idea to have Z-crosshair trace that would work more or less like the X and Y traces at the moment? Even nicer would be a strip that would show an orthogonal region of the spectrum around the crosshair, but I would assume that this would be a bit demanding performance wise. Another way to solve this would be a macro that places a marker at the crosshair position AND navigates to the correct place in the orthogonal view at the same time that could be evoked with a single key. Any Ideas how to accomplish this? Ideally this macro would be universal looking for other windows that have the same spectra mapped but a different permutation of the axis but I think even a hardcoded version that just works in two specific windows would help a lot... Christoph -- --------------------------------------------------------- Dr. Christoph Brockmann Division of Structural Studies MRC Laboratory of Molecular Biology Hills Road Cambridge, CB2 2QH phone: +44-1223-40-2261 or +44-1223-40-2042 e-mail: [log in to unmask] ---------------------------------------------------------