Is it possible to copy CommCare reports from one project space to another

This normally requires a Pro Plan to setup for your project. I think your project may have an older version of the Pro Plan and needs to updated to the newest one. Once that's done, Cory's solution will work.

A repeat group is capable of iterating over a space separated list with a Model Iteration query, but like any repeat group auto-expansion, this can only occur over a set of values which is fixed when the form opens.

That means the list can't be determined by user input in the form, unless you follow the pattern where the repeat contains an entry for every possible selection, and uses Display Conditions around an inner group to hide elements which aren't chosen.

With those caveats: You can actually accomplish this quite simply, by providing the path to the space separated list as the Model Iteration query itself. Model iterations actually internally operate over a space separated list that they generate by performing a

join(' ', instance('something')/your/iteration/query)

operation on your input. As such, if you provide a query with only one element, the join will just return your space separated list and proceed as usual!

EDIT: Forgot to mention - if you are going to use this method and reference a question inside the form (rather tthan an instance as in my example) it needs to:

• Be set it using a default value, not a calculation
• Needs to come before the model iteration loop.