Order by in multiple spectra analysis

[lpatiny]

In multi spectra analysis we have this nice feature that allows to display charts.

One important chart would be the evolution of the purity depending the acquisition time. However today there is no simple way to sort the spectra based on acquisition time (or any other parameters).

The idea is that next to the variables X and Y we have a little sort button that allows to sort the spectra based on this specific variable.