How to add URL to projects or other ModelElement into Description

I would like to add into a description links to sibling projects, or even better to particular ModelElements (or diagram) of them. But I did not manage to do so, ie right-click>Open Link does not drive me where expected.
Is it even possible?

I have tried to use some particular url scheme like:

  • eclipse://open?file=/someproject/capellamodel.aird
  • hlink://../someproject/capellamodel.melodymodeller#someid
  • platform:/resource/someproject/capellamodel.aird
  • file://../someproject/capellamodel.aird

NB: the last url is in fact launching another Capella instance instead of just opening the activity explorer…

Have someone any idea?

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