SW API AddContextMenu

Guys, please!! anyone! dying here…

Trying to make a simple ContextMenu in a part.

SW API AddContextMenu

cannot get it done. googled any combination. spent hours trying diff approaches. NOTHING!!
Im sure i’m missing a very small details here. but i cannot get which one (((

please adivce:
the code is pretty simple (for a test)

internal static SldWorks SwApp;
internal static int cookie; 
public bool ConnectToSW(object ThisSW, int Cookie)
{
 SwApp = (SldWorks)ThisSW;
 cookie = Cookie;

 ICommandManager icmd = SwApp.GetCommandManager(cookie);
 ICommandGroup cmdGroup;    
 
 var a = icmd.AddContextMenu(1, "Test");
 a.SelectType = (int)swSelectType_e.swSelEVERYTHING; //tried other options too
 a.AddCommandItem2("Test2", -1, "hint", "tool tip", 1, "Booom", "", 1, (int)(swCommandItemType_e.swMenuItem));
 a.ShowInDocumentType = (int)swDocumentTypes_e.swDocPART;
 a.HasMenu = true;
 //a.Activate(); //cannot be set on conntextmenu object. only on CommanndGroup.
 //cmdGroup.AddCommandGroup2(); // working. Im able to add both menu and toolbar (but not contextmenu)

 return true;
}

Thanks!!!

Have you tried AddMenuPopupItem4?