Storybook navigation sorting

config.js

// .storybook/config.js

import { addParameters, configure } from '@storybook/react';
import { storySort } from 'storybook-sort';

addParameters({
  options: {
    showRoots: true,
    storySort: storySort({ order: ['Home', 'Pages', ['Projects', 'Community', 'Help'], 'Components']}),
  },
});

// ... rest of config.js

storybook-sort.js

export const storySort = options => (a, b) => {
  // Debug.
  // console.log({a, b});

  // If the two stories have the same story kind, then use the default
  // ordering, which is the order they are defined in the story file.
  if (a[1].kind === b[1].kind) {
    return 0;
  }

  const storyKindA = a[1].kind.split('/');
  const storyKindB = b[1].kind.split('/');
  let depth = 0;
  let nameA, nameB, indexA, indexB, index;
  let ordering = options.order || [];

  while (true) {
    nameA = storyKindA[depth] ? storyKindA[depth] : '';
    nameB = storyKindB[depth] ? storyKindB[depth] : '';

    if (nameA === nameB) {
      // If a nested array is provided for a name, use it for ordering.
      index = ordering.indexOf(nameA);
      if (index !== -1 && Array.isArray(ordering[index + 1])) {
        ordering = ordering[index + 1];
      }

      // We'll need to look at the next part of the name.
      depth++;
      continue;
    }
    else {
      // Look for the names in the given `ordering` array.
      indexA = ordering.indexOf(nameA);
      indexB = ordering.indexOf(nameB);

      // If at least one of the names is found, sort by the `ordering` array.
      if (indexA !== -1 || indexB !== -1) {
        // If one of the names is not found in `ordering`, list it last.
        if (indexA === -1) {
          indexA = ordering.length;
        }
        if (indexB === -1) {
          indexB = ordering.length;
        }

        return indexA - indexB;
      }
    }

    // Otherwise, use alphabetical order.
    return nameA.localeCompare(nameB);
  }
};

That's a very nice solution, but I found in the docs that they already have something implemented to do that on the preview properties:
https://storybook.js.org/docs/react/writing-stories/naming-components-and-hierarchy#sorting-stories

@vitorbertulucci Yep. I added that functionality (and its docs) to Storybook with this PR: storybookjs/storybook#9188