gistfile1.txt

var s = context.selection
var v = context.document.currentView()

var r = v.totalRectForLayers(s)

var artboard = [[MSArtboardGroup alloc] initWithFrame:r];
var page = context.document.currentPage();

[page addLayers:[artboard]];
[artboard setGrid:[page grid]];
[artboard absoluteRect].rect = r;
[page moveLayersToArtboards];

[artboard select:YES byExpandingSelection:NO];

Thank you :)