I have a multiple selection list box in my InfoPath 2013 form which I am binding by doing a lookup from a SharePoint list. Now I want to give a select all or deselect all link in the multiple selection list box. So when user click on Select All, All the checkboxes should be selected and when user click on UnSelect All, all the checkboxes should become unselect. Any way I can do without using any code? out of box only.