I hear that… It took Ableton 10 versions before they understood why users kept requesting groups inside of groups 
What if there were were something like Sidebar Group Folders, or Playlist Folders.
It’s not that it’s only difficult to navigate a long list of categories, it’s that there can also be multiple categories of the same sound family.
For example:
Reverse Hits - Atonal
Reverse Hits - Tonal
Reverse Hits - Stingers
or
Braams - Aggressive
Braams - Atmospheric.
Braams - Dark
Braams - Horror
The current use case I’m in is composing And sound designing for horror album for a trailer library. Not only is trailer music already niche in its sound categories, Horror is even more specialized. I’ve found I’ve had to yet again make another sidebar group and completely new custom playlists…
So basically folders inside of groups would be helpful to put each specialized list in its own parent group. I’d imagine people using AF for SFX work would find it useful too… They could have a Weapons parent group and nest different weapons lists inside… Guns, Bullets, Blades, Artillery, etc.
I understand your point about moved or missing files. The thing is that every DAW gives you a way to search for and relocate those missing files. When files are missing from a DAW project you’re greeted with a search window, or the DAW has an icon where you choose a location or locations and it will rescan. Unlike a DAW once link’s in AF are broken and there’s no way to search for the missing files.
As it is I have two machines with totally different file structures. I have to maintain each machine separately and I’ve more or less given up on using AF on one of them because one’s a MBP with a single internal disk the other’s a MP with multiple drives, i.e. different locations…
Even if the same files with identical names exist on the other machine I’d have to manually re-create each list because AF doesn’t have the ability to search for files with identical names in different locations.
Here are a few thoughts based on different types of implementations I’ve seen…
- A Preferences option to set drives and folder locations that AF could use for searching if files go missing.
- A database file based on these drive or folder locations that can be cross referenced. (Soundweaver uses this. You have to manually update the database yourself, as long as you do it’s painless. It’s never tossed up a missing file error at me because I update the database anytime anything on the sample drive’s changed…)
- A search window that can search inside all subfolders of the directory or disk chosen. (Logic does this. If multiple sample files are missing you only need to steer it to the right directory once and it relocates all other missing files, even if some of them are in subfolders).
I know the last one’s a big ask but not only is this something I’ve run into myself, I’ve seen it mentioned regularly.
Anyway thanks again for taking the time to read through this whatever the outcome… It’s always nice to see when a developer’s actually willing to hear user requests!
Cheers…