Question: Custom Order of Modular Content

I am aware of the possibilities to order the modules in a custom manner with YAML like this:

content:
items: '@self.modular'
order:
by: default
dir: asc
custom:
- _showcase
- _highlights
- _callout
- _features

But is there a way to add a custom order for the modules in the admin panel, so that a content-editor can create an order without editing a yaml-file? A drag & drop with something like this would be nice:

content:
type: order
items: '@self.modular'

In most cases, the predifined standard-ordering (date, prefix, folder) does not make much sense for modular content and one-pager.

The issue does not name files or tests; begin by reviewing the admin panel's modular-content ordering flow and the existing YAML ordering configuration. Define the drag-and-drop editor behavior and verify that saved ordering is reflected in one-page modular content without manual YAML edits.

Written by the indexing model from the issue text.