Remove this option or stop making it default?

[ZUCCO]

When you want to post an image in my forum and you have the url of the image for example image.png and you want to insert the url in the box below you see that check , I want to either stop showing that check marked or not show it at all


How? thanks :D

[Lynne]

AdminCP > Settings > Options > message attachment options > Advanced Insert Image Popup - Enable > No