Feature Request: Forwards and Backwards list traversal

[Maitreya20201103]

Checklist

Please replace the space inside the brackets with an x if the following items apply:

• I've verified that I use the latest version of the add-on by redownloading it from AnkiWeb
• I've verified that I use the latest version of Anki by checking at https://apps.ankiweb.net#download
• I've checked if anyone else suggested this feature before by looking through the issue reports.

Problem case

Is your feature request related to a problem? If so, please describe it here. E.g.: "My workflow is such and such, and this and that would help."

For some lists, it is advantageous to be able to traverse both forward and backward.

Solution

Concisely describe the solution you would like

It's easy enough to generate a backwards traversal list manually by simply creating overlapping cloze deletions from bottom to top.
However, it would be a nice feature to save time to have this done automatically.

Because it is a good idea to keep each list in a separate deck, I would suggest that the backwards traversal list be placed in a deck alongside the forward traversal list with a slightly different name. e.g. -backwards or -reverse.

Concisely describe alternatives you've considered (if any)

More information

Additional context: Add any other context or screenshots about the feature request here.

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