How to create multiple interactive points using "impoint" in an array and get the position of the one I clicked on?

I'm currently trying to generate n interactive points linked by a function using impoint and saving them in an array to extend the number of points if I want to. This was a topic before and a solution proposed by Giovanni Ughi doesn't work if I use the addNewPositionCallback like below (here as comment, you can remove % to try it):

[dim_y dim_x] = size(array); k = 0; for i = 10:10:dim_y % for example creating one every 10

    k = k+1;
    genio(k).h = impoint(gca,array(i,2),array(i,1));

    % addNewPositionCallback(genio(k).h,@(genio(k).h) title(sprintf('(%1.0f,%1.0f)',genio(k).h(1),genio(k).h(2))));

    % Construct boundary constraint function
    fcn = makeConstrainToRectFcn('impoint',get(gca,'XLim'),get(gca,'YLim'));
    % Enforce boundary constraint function using setPositionConstraintFcn
    setPositionConstraintFcn(genio(k).h,fcn);
    setColor(genio(k).h,'y');
end

If someone has solved that problem for a variable number of impoints I would be really grateful. Common solutions use Globals and are using copies for every impoint. Any suggestions?