Board Thread:Support Requests - Getting Technical/@comment-77437-20170717114851/@comment-27958705-20170717115723

javascript:void($('.mw-collapsible-toggle.mw-collapsible-toggle-collapsed').click) will expand all collapsed elements. javascript:void($('.mw-collapsible-toggle.mw-collapsible-toggle-expanded').click) will collapse all expanded elements.

u can save those commands as bookmarklets and use when u want.