Auto-check select_multiple list based on repeated select_one responses

Hello everyone,

I’m building a survey form on KoboToolbox to understand residents’ daily activities. My structure is like this:

  • In Q1, I use a repeat group where respondents describe one activity at a time and select an activity type (e.g., bathing, eating, working, etc.).
  • In Q2, I have a select_multiple checklist asking them to review which types of activities they performed during the day.

What I want to achieve:

Automatically check the boxes in Q2 if the respondent has already selected that activity type in Q1.

I understand this might involve using a join() or selected() logic, but since KoboToolbox uses Enketo, I suspect such dynamic defaults or calculations from repeat groups might not be supported.

Is there any workaround to:

  1. Pass selected values from a repeat group to a select_multiple field?
  2. Auto-check or dynamically pre-fill Q2 based on previous answers?

Any help or direction would be greatly appreciated.
Thank you!