There is limited (and undocumented) AJAX 'dependent selects' support built into Page Reference fields. You must use the 'Custom find' or 'Selector string' option for defining selectable pages, and reference the source Page Reference field (that exists on the same page) using syntax like this: parent=page.page_reference_field_name Based on testing I have found: It only works for Select, Select Multiple or AsmSelect inputfields It does not work inside a repeater item
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