This is a Cloudbox article that has not yet been updated for saltbox. The information therein may not apply to Saltbox.
The scripted rclone setup is the saltbox equivalent to that setup.
The longer article discusses the concepts behind it, but the tasks are taken care of by the scripted rclone setup.
If you had that set up in Cloudbox, you can and should reuse your existing setup. There is no reason to set it up again from scratch.