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Is it possible to create an action that opens a Repeater area to the first form on load?
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By default, a Repeater area is closed and a user must click the button to view the first area, enter data, click the button again to enter more. Can I make it so that the first button click is essentially done so the first Repeater area is open...then a user can click the button if they want more of them?

Yes, set the data source or whatever to 0

There is a field called "Data provider" which must be the array (i.e. {var:data.key}) and there is a field called "Keys provider," but changing that to 0 (or anything else) does nothing. There is no field called "Data source" in the Repeater element. Any other thoughts on that solution?
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I was thinking the way to accomplish the Repeater opening might be to have a onload statement that clicks the "Repeater Add" button once, but I don't know how to automate that.

what is the initial value of {var:data.key} ?

The value is always "0 "initially.
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It was my understanding that it was determined under this post that it could not be anything else other than "0" for the initial value in version 6 of Chronoforms:
http://www.chronoengine.com/forums/posts/t108225/chronoforms-repeater-start-number-at-1