Pup-Up Form

[wer_gh]

Hi!
Please tell me how you can create a popup window with a form?
(screenshot 1, taken from another user's question)

 

[TeeSee1]

https://support.google.com/appsheet/answer/11623804?hl=en

It is used with an action on a detail view.

A form is used to let users 'input' data to begin with, so you do not need INPUT().