Missing alt field in image upload, add it please

I miss the possibility of writing myself an image alt when I insert services images, or the top image or in general all images in the theme. It seems the images are grabbing as alt the titles or subtitles of the sections. As you must know, for SEO we need to be able to write some keywords and alts are one of the places for it. Please, add alt field to all theme images that can be uploaded from theme options or services options. Thanks