In LF Web Client, we can add "custom actions" to the tool bar/context menu. When do it through web client/options/tools, the dialog will allow add one action at a time and they all appear under "Custom Actions" menu. Though you can drag a single "action" and put on menu bar, my question is:  how to define a menu group item other than "Custom Actions" so I can drag the whole set of custom actions and place on menu bar?

In the picture above, I defined 2 custom actions, and I want create a menu group named "Test Group" then put 2 custom actions under it, just like other exist menu group i.e. "Advanced". 

Is it possible to do that under current version of Web Access/Web Client?