Update content at multiples places at once? Auto-synchronized Group

OmniOutliner
#1

I’d like to have “Auto-synchronized Groups”. Multiple copies of the same group would update their data simultaneously.

Example if I have the group:

Fruits

  • Apple
  • Pear
  • Raspberry

… and I copy it somewhere else it the oo3 document I get…

Fruits

  • Apple
  • Pear
  • Raspberry

Fruits

  • Apple
  • Pear
  • Raspberry

… and now if I edit the first Raspberry, the second Raspberry is simultaneously updated…

Fruits

  • Apple
  • Pear
  • RaspbeRRRRy

Fruits

  • Apple
  • Pear
  • RaspbeRRRRy
#2

would be great for software design with multiple references to the same object/class