Can't change the image source

[lucasmine50]

I'm trying to change those images, but when i click the image the input to search doesnt appear

[Harish LS]

Click on the + icon marked in the screenshot to search.

Mark as right answer if this is helpful

[lucasmine50]

It didnt worked. It show the "add brefore" option. 

[lucasmine50]

It didnt worked. It show the "add brefore" option.