Show Form Collapse fields after clicking a button?

Hi, 

I would like to hide the form collapse button, exept the first one. So when someone click on the first button, it open a section. If he wish to add more, they click on the second button (now visible), if more the third button (that wasn't visible at the first button)

That way I won't see 6 buttons one behind the other

https://french.jotform.com//?formID=62233992866265#

Unfortunately, it is not possible to use the "click" on the form collapse field to trigger another field to show but.

You will need another input box that will serve as the button. To show/hide fields, you can use the Conditional Logic feature that we have, here's a guide that you can refer to: https://www.jotform.com/help/57-Smart-Forms-Using-Conditional-Logic 

Now to use the conditional logic in relation to the form collapse field, you can refer to this another guide: https://www.jotform.com/help/297-Show-or-Hide-multiple-fields-at-once-using-form-collapse-tool

The form collapse field is usually applied in conditions where it involves hiding/showing multiple fields.

I hope that helps.