Hi ,

The below support article refers Pega 7.1.8.Please let me know if these API's are applicable for pega 62sp2 IAC.

https://pdn.pega.com/support-articles/pega-web-mashup-gadgets-do-not-load-angularjs-dynamic-views

/*
@api
Remove named gadget, close IFrame, and drop from the gadget hash table
@param $String$sGdtId - gadget id.
@return $void$
*/
removeGadget: function(sGdtId) {
  pega.web.mgr._removeGadget(sGdtId);
},

/*
@api
Initialize new gadget and add to the gadget hash table managed by the manager.
@param $String$sDivId - gadget container div element id.
@param $String$window - document window.
@return $void$
*/
addGadget: function(sDivId, oWin) {
  pega.web.mgr._addGadget(sDivId, oWin);
},

/*
@api
Update all gadgets embedded into the host web page.
@return $void$
*/
updateGadgets: function() {
  pega.web.mgr._updateGadgets();
}