Add stack to created MException object

Hi,

can I add stack Information to a created object.

I have created a MException object, like this.

myEx = MException('foo:bar','myErrString')

and I have a stack, like

myStack = struct('file','myFile','name','myName','line',42)

How can I add stack information to a MException object?

myEx = MException('foo:bar','myErrString',myStack ) does not work.