Renaming file

[Chouchen]

Is your feature request related to a problem? Please describe. If you upload a file from any screenshot app, it'll have a name like "screenshot_app_YYYYMMDD_his.png" or something like that.

Describe the solution you'd like So, you can rename before uploading, but many of those apps upload directly. It'd be nice to have an option renaming the file in the database without touching the generated file name in the file system.