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@stevepiercy @ichim-david @davisagli Please provide review.

This is a nice step forward. Thanks for your work on this.

In the video, I noticed two things that I'd like to ask for opinions from the members of both the @plone/volto-accessibility and @plone/volto-team. Please don't make changes yet, but let's get some feedback.

1. When the Order tab gets activated, there is a slight delay of about a half-second with a "no entry" icon 🚫 displayed. Should that be changed to a "Loading" icon? When editing a page or control panel, then click Save, I see the loading class injected into the Save button and a grey spinning circular line.
2. I don't think the Order list items should unload when the Order tab gets deactivated after it was active one time. I think it should remain loaded, but hidden. That will eliminate second and subsequent reloads while editing a given page.

Thank you, @stevepiercy, for your suggestions.

I completely agree with your first suggestion regarding replacing the icon 🚫 with a "Loading" icon. In fact, I had initially considered implementing this change before raising the PR but decided to keep the existing behavior to gather feedback from the Volto team and accessibility experts. It's great to see that you noticed it too, as it reinforces the need for improvement in this area.

Regarding your second suggestion, I think it’s a great idea, but I am concerned that its implementation might conflict with the main issue being addressed.

Looking forward to hearing more thoughts from the Volto team and accessibility members on these points!