[Feature Request] Allow users to return to previous step.

[alexzhang1030]

I think this is a good feature in some scences.

[ulken]

I'm not sure how this would work since each prompt is detached from the rest. Once a prompt has finalized, the library has no reference to it any longer.

One plausible way would be via the group utility. Maybe we can pass hooks to each prompt initializer to go back and forward in history within the group. There we would could potentially store references to each prompt and provide a mechanism for them to clear themselves.

Thoughts @natemoo-re?

[fvsch]

I was trying the clack demo on https://www.clack.cc/ and was surprised I could not go back to a previous step to fix a mistake.

I guess the more the UX feels like a form, the more you expect form-like behavior. (For instance, my first intuition was to use Shift+Tab to “tab back” to the previous input.)