We have a menu built in code-behind, the focus key works and we can move from menu item to item horizontally with arrows but there doesnt seem to be a way to access the dropdown items. WAVE for the demo (attached) shows "Tab" but WAVE on our menu does not (attached). here is the markup
<telerik:RadMenu ID="RadMenu2" runat="server" Flow="Horizontal" BorderWidth="1px"
Style="z-index: 10; width: 100%; white-space: normal;" Skin="Bootstrap"
Font-Names="Verdana" Font-Size="X-Small" EnableRoundedCorners="false" RenderMode="Lightweight"
EnableAriaSupport="true" CommandKey="Alt" FocusKey="B" KeyboardNavigationSettings-FocusKey="B">
<CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation>
</telerik:RadMenu>