Add combo option at particular index

Please can you tell me if it is possible to add a combo option at a particular index? If not then can we move options up or down within a combo list programmatically?

Thanks

There is not such a functionality. You need to clear the options list and then render it again:

combo.clearAll();
var options = [{value:"value1’,text:“text 1”},{value:"value2’,text:“text 2”},…,{value:"valueN’,text:“text N”}];
combo.addOption(options);