1. It's named as Pictures to not confuse people who has vague understanding what is media. We'll probably rename it to "Add/Edit Images", from my understanding imaging is suitable for both, what do you think ?
2. Allowed list of extensions for albums can be changed in `sys_objects_storage` table, `bx_albums_files` row, `ext_allow` field.
3. We plan top add support for sounds in future versions but not sure if it will be part of albums or another module.
4. Embeds are suitable for independent Videos module, but not for Albums, so it will be part of some other module functionality.
5-6. Please check if you are using correct ffmpeg binary for your OS and cron jobs for UNA are working correctly.