Scripts

function add(array, index, change)
	local ar = {}
        local f = 0;
	for i, e in array do
		if i == index then
			ar= change; 
                        f = 1;                         
		end
                if f == 1 then        
                         ar[i+1]= e;
                else
                         ar= e;
                end;
	end
	return ar
end