GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
############################################################################# ## #W init.g GAP package `XMod' Chris Wensley #W #Y Copyright (C) 2001-2017, Chris Wensley et al, ## ## read the function declarations ReadPackage( "xmod", "lib/util.gd" ); ReadPackage( "xmod", "lib/dom2dnd.gd" ); ReadPackage( "xmod", "lib/map2dnd.gd" ); ReadPackage( "xmod", "lib/gp2obj.gd" ); ReadPackage( "xmod", "lib/gp2map.gd" ); ReadPackage( "xmod", "lib/gp2up.gd" ); ReadPackage( "xmod", "lib/gp2act.gd" ); ReadPackage( "xmod", "lib/gp2ind.gd" ); ReadPackage( "xmod", "lib/map2arg.gd" ); ReadPackage( "xmod", "lib/isoclinic.gd" ); ReadPackage( "xmod", "lib/hap.gd" ); ReadPackage( "xmod", "lib/gpnobj.gd" ); ReadPackage( "xmod", "lib/gpnmap.gd" ); ReadPackage( "xmod", "lib/gp3obj.gd" ); ReadPackage( "xmod", "lib/gp3map.gd" ); ReadPackage( "xmod", "lib/gpd2obj.gd" ); ReadPackage( "xmod", "lib/cat1data.gd" );