ContentControl.RepeatingSectionItems (Word)

Returns the collection of repeating section items in the specified repeating section content control.

You can use this property with repeating section content controls only. Using it with other content controls will result in an error.

Dim rsiRepeatingSectionItems As RepeatingSectionItemColl
Set rsiRepeatingSectionItems = ActiveDocument.Range.ContentControls(1).RepeatingSectionItems