Set Grids Vertical Extents returns Null

[Elie.Trad]

@khronart these nodes work only in sections and elevations, for plan views check out this post, it should have the solution somewhere:

Change Revit Grid Extents

Hello everyone, I found a very helpful script from youtupe. But it only work in active view. Can we improve the script which can modify the grid in multi-selected views.