The KM11 feature of scanning for buttons makes it allot easier to find what buttons might be available. It can be a tip to close all other tabs but the one holding your website before scanning. And if you press ⌥ option while clicking the "Button ˅" you'll get an alphabetised list, which can make it allot easier to find your menu. The setting to "Wait For Enabled Button" can also be a very nice one to use, but when testing here I found an additional pause (.3 seconds in my example) was needed on top of this.