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@bubble.user1

You can do so by following the steps below:

  1. Add a new repeating group (Selected Fruit RG) on top of the main repeating group.
  2. Create a State (Selected Fruits) on the Main Repeating Group with type “Fruits” and Enable the List check box
  3. Set Datasource of the Main Repeating Group as Search for Fruits minus Selected Fruits
  4. Set Datasource of the Selected Fruit RG from the State as Main Repeating Group’s Selected Fruits
  5. Show the Selected Fruit RG only when State List count > 0

Let me know if this works for you.

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