Thank you sir very much. It is working as toggling off:
sheet.add(".scheduler_default_tree_image_no_children, .scheduler_default_tree_image_expand, .scheduler_default_tree_image_collapse", "display: none");
If I need to toggle it back on, how do I do it sir?
I have tried following but not working:
sheet.remove(".scheduler_default_tree_image_no_children, .scheduler_default_tree_image_expand, .scheduler_default_tree_image_collapse", "display: none");
or
sheet.delete(".scheduler_default_tree_image_no_children, .scheduler_default_tree_image_expand, .scheduler_default_tree_image_collapse", "display: none");
or
sheet.add(".scheduler_default_tree_image_no_children, .scheduler_default_tree_image_expand, .scheduler_default_tree_image_collapse", "display: true");