Tab tab1 = instance.ActiveTab;
//Наводим мышь на кнопку
var xpath_onover = "//div[@class='feedback-control']/button";
var form_onover = instance.ActiveTab.FindElementByXPath(xpath_onover,0);
form_onover.RiseEvent("onmouseover", instance.EmulationLevel);
System.Threading.Thread.Sleep(1000); // пауза
//Делаем клик на кнопке "поделится"
var xpath_click = "//div[contains(@class, 'feedback-menu-view__item _name_share')]";
var form_click = instance.ActiveTab.FindElementByXPath(xpath_click,0);
form_click.RiseEvent("click", instance.EmulationLevel);
System.Threading.Thread.Sleep(1000); // пауза
project.Variables["share"].Value = instance.ActiveTab.FindElementByXPath("//input[@class='input_medium__control']",0).GetAttribute("value");//вернет в переменную "share" - ссылку шаринга