Download/Share Selected images would be very useful in UI --> Camera Files Manager
Ability to download/share all selected images (similar to "Delete Selected") or would be two marvellous functionality improvements both in WebUI and Phone interface. Especially during time critical moments where the end user needs to forward a set of images very quickly to the authorities via email/whatsapp/etc..
Download images one by one. ZIP or add them one by one to email or messaging app.