Hi @DarfNader,
For clarity, the Dropbox API doesn’t support it, so there is no way to set it with that API. Their V2 API does support it, and we will be implementing a new integration to that API within the next few months, replacing the current integration against their V1 API.
For B2, until recently their hashing flow prevented us from full integration. More on that here: B2 (Backblaze) upload
Within the last couple of weeks B2 made the changes necessary to fully integrate.
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