Peter,
Thanks for the information. Maybe, there's another solution. In my case, all actions in the form being docked have corresponding menu items. I think if I merge the menu of the docked form to the main form's menu, embedded actions shortcuts must work, because merged menu items' shortcuts become (in idea) the main form's shortcuts. However, in practice it is not so. I.e. after ManualDock I call MainMenu.Merge(EmbeddedMenu). It merges ok, but shortcuts still do not work. If you know anything to add to the information in your message, I am all ears :)
I am going to look also how frames merge their actionlists to parent forms.
Best regards, Ruslan