I would also like to request this feature (uploading audio files). I want to allow my users to attach audio files directly into Pickaxes. This will enable users to create transcripts from audio content within pickaxe and fully use already supported models like REKA AI via Actions within Pickaxe.
If you also think this feature is useful, then please show your support here so the developers can consider implementing it. Every heart helps make this more of a priority. Thanks.