[MlMt] MM and BusyCal

[FG]

I'd like to combine MM and BusyCal (https://www.busymac.com/).
"alt / cmd" or "shift / cmd" dragging a MM-eMail to BusyCal works fine and creates a new todo in BusyCal which is want I need.
However in BusyCal the created link to the eMail message is an .eml file and if you click on it, it opens Apple Mail. Yet I need it to open the MM-message.
Has anyone an idea how to solve this?
Thanks and cheers
Fred
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