Merge a MenuStrip into a MenuStrip but not a ContextMenuStrip into a MenuStrip

[academic]

Using
ToolStripManager.Merge(ToolStrip,ToolStrip)

I've been able to merge a MenuStrip into a MenuStrip but never a
ContextMenuStrip into a MenuStrip.

From the docs it seems to me I should be able to.



Have you ever seen it done?



Got any suggestions as to what I could be doing wrong,

or how to do it right?



It was working when merging a MenuStrip into a MenuStrip.

I Added Context in front to the appropriate MenuStrip's to convert and it no
longer works.

Actually I started with ContextMenuStrip - it didn't work so I converted to
MenuStrip and it worked.

Converted back and it does not work.



Thanks for any help