Consider option/possibility to show only one or multiple parts of the spectrum

In some cases, the calling function may ask to display only certain regions of the spectrum. On case could be :
-show one section of the spectrum. For example to show the relevant coupling structure of a signal when rolling over the corresponding hydrogen on the structure) - this will be like zooming.
-Show multiple regions. For example 4.2-4.05 and 3.86-3.75 and 2.1-1.9 each with a small space beteeen the parts. This may be desirable when displaying a signal for which a parameter is optimized (say a coupling constants), but the same coupling influences also another region of the spectrum which should be shown as well. When working on one part of a coupling network of a compound, only one part of the spectrum is interesting - it would be nice to show only that part. It could be the part that is being optimizing a parameter by best fit of a simulated spectrum with the experimental one.

If you agree with this option, you probably want to implement it early in he programming process... the selection would be itotope specific and propagate to the 2D spectra opened simulateneously with the same isotope.

Do you want a picture to examplify 1D or 1D&2D ?