[data grid] Multi-sorting discoverability issues

[cherniavskii]

Summary

Context: this is a side discussion started in #10866

Currently, multi-sorting can only be applied with a keyboard modifier – Ctrl/Cmd+click or Shift+click. This has some downsides:

1. Discoverability: End users are not familiar with the keyboard modifier, a lot of them might not be aware they can multi-sort.
2. Can't be used on mobile.

We discussed a couple of solutions:

1. Add a sorting panel to manage the sorting model (e.g., add/remove/reorder the sorting fields, change the sort order for each field).
2. Allow the multi-sorting to be used without the modifier key via opt-in prop.

Examples

No response

Motivation

No response

Search keywords: multi sorting discoverability

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