Iframe First
If an action need to be performed on button / input field which is inside iframe you can check this checkbox which check within iframe first and then in main page. which saves lot of time.
On this page
![](/docs/4.x/assets/img/iframe-first.png)
If an action need to be performed on button / input field which is inside iframe you can check this checkbox which check within iframe first and then in main page. which saves lot of time.