Finally upgrading the resource window, it became clear that young lion once envisioned storing assets & clips in different bins, which the user could create. It was to be a complete filesystem of assets, clips & bins inside the EDL. A lot of dead code handles folders. Over 30 years, lions never had a need for such a feature & forgot it was ever started. The most convenient way to create clips & bins ended up being to create nested EDL files in the native filesystem. Lions use that all the time. It would have to be a pretty big project to subdivide the assets into different folders in the current EDL. There was also a complicated mechanism of referencing all the EDL objects from fixed listbox tables & then further referencing a subset of items in the fixed tables from the current listbox. There was a lot of room for dangling pointers, race conditions, & memory leaks. It was intended for fast navigation between ...