How can we have global Expand/Collapse for JQGrid when we have rows grouped on some field?

Question

How can we have global Expand/Collapse for JQGrid when we have rows grouped on some field?

On expanding, it should expand all groups and on collapsing all groups sho

Answer 1

$('#jqxGrid').jqxGrid({
    groupsexpandedbydefault: true
});

worked like a charm for me (source).