Outlook integration - Unselect all attachments

In the Outlook integration, it’s very annoying to have to unselect all of the pictures in a signature; almost to the point it’s quicker to create the task manually. Is there anyway to get a select all / clear all button? Please see the attached image. The attached image isn’t a bad one, but just an example where I’d need to click 6 boxes so it wouldn’t add attachments for signature photos.