Impossible to load gmfs in real-life calculations

[ptormene]

The current way we are displaying the options to plot the gmfs doesn’t work when having multiple gmfs and multiple gmpes (a reasonable calculation, not a demo for a workshop). The window can not be re-seized and it’s not possible to scroll down, therefore is not possible to plot any gmf.

An alternative will be to stored all gmfs per GMPE in a single file, and plot the first one. In that way, the user could choose only the GMPE and have all the possible simulations in the columns of the layer.

[micheles]

My understanding is that the plot is useful for scenario computations (i.e. few gsims) and not for event based calculations, where there will be too many GMFs anyway, so it will be impossible to do it. Perhaps we should just raise an error? To be discussed with @CatalinaYepes