Add/Remove menu items

Hi,

I've got a requirement whereby my file open menu needs to have items dynamically added/removed at run time. Not a most recent list but similar.

I have the following in CMainFrame::OnCreateControl()

if(lpCreateControl->nID==ID_FILE_OPEN)
{
    lpCreateControl->controlType=xtpControlSplitButtonPopup;
    return TRUE;
}

Resource:
ID_FILE_OPEN MENU
BEGIN
    POPUP "Popup"
    BEGIN
       MENUITEM "item1"   ID_FILE_ITEM1
       MENUITEM "item2"   ID_FILE_ITEM2
    END
END

This converts the control into a sub menu both on my main menu and the toolbar in question.

What I want is the ability to add a separator then some more items onto the end of the menu once on application startup. I'm guessing I also need to remove the sep and the menu items before the command bar state is saved. I also want to associate images with these new commands.

How to go about this?

Cheers,
Phil.