Repeater index

Hi!
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I've a form with a repeater area: unit name is Contact and every field have name like Contact.#Contact.name.
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Everythig works fine.
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In the empty form the repeater index start with 1 when i click the repeater add button.
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Instead in the edit form, when the repeater is populated with db data, the index start with 0.
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How can i set the repeater index to star always with 1?
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Thank's,
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p.

You find the min./max. cloner-settings under:
repeater / Advanced Settings -> Cloner
Eddi

Thank's Eddi, but min. is the number of minimun repeat, not the index start.

In my JSON-Field the start-ID ist 1 :
{"1":{"vorname":"Lotti","name":"Lustig","email":"asdef@serter.de","plz":"64289","ort":"Darmstadt","str":"Ludwig","tel":"06151-1111"},
"2":{"vorname":"Kurti","name":"Burti","email":"kurti@kurti.com","plz":"345456","ort":"Köln","str":"Breite","tel":"23423345"}}