@raraavismedia afaik, Velo currently doesn’t support this feature.
There’s a way to do it though, if you create your own upload button with a custom element (html, css, js) and, for example, read the base64 string and use the buffer package combined with the Velo media-backend upload() .
But it’s more complicated than the regular Velo coding.
If you wish to get into it, I can refer you to some articles: