how to add check boxes to popup menu?
Attach a method to the element, in which you want to show the popup and write these code.
This is a example by which you can create any checkbox item in popup menu
//create popup menu
var ppMenu = plugins.window.createPopupMenu();
//create checked checkbox
var menu1 = ppMenu.addCheckBox('Checked');
menu1.selected = true;
//create unchecked checkbox
var menu2 = ppMenu.addCheckBox('UnChecked');
menu2.selected = false;
//show popup menu
ppMenu.show(elements[event.getElementName()]);
This is for Servoy 5.1.2 using Windows Plugin.