Set work schedule assignment flag to default "Yes"

Summary:

I need to modify the Primary Flag dropdown values on the Work Schedule Assignment page. Currently, the dropdown displays Yes and No options. The requirement is to restrict the dropdown so that managers only see Yes when assigning or changing work schedules for their direct reports.

I have already tried configuring this through Page Composer, but I could not get it working.

Has anyone implemented this before or knows the correct approach to achieve it? Any guidance would be appreciated.

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