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How create a button to jump to the parent project
Last updated at 7:00 am UTC on 24 February 2018
 | btn |
  btn := SimpleButtonMorph new.
  btn target: Project.  "(a class)"
  btn label: 'up'.
  btn position: 20 @ (Display height - 40).
  btn actionSelector: #returnToParentProject.
  btn openInWorld.


Or select

 Project returnToParentProject

in a Workspace and choose the menu 'button for it'. Then bring up the halos and choose the red one and change the label.